Usage of the character 单

unilateral
one-sided
home remedy
folk prescription(same as 丹方)
single-drug prescription (same as 奇方 (jīfāng), one of the seven kinds of prescriptions of Chinese medicine 七方 (qīfāng))
metaphorically. a good solution

jiēdān

接单

[接單]

to take a customer's order
(of a taxi driver) to accept a booking
(of a delivery rider) to accept a delivery job

gēdān

歌单

[歌單]

playlist
song sheet

shuādān

刷单

[刷單]

to generate fake transactions in order to game a commercial online platform (one that rewards users who make numerous transactions)

miǎndān

免单

[免單]

to let a customer have (a product or service) free of charge; to waive payment

dānyuè

单月

[單月]

monthly
in a single month

dānyī

单衣

[單衣]

unlined garment

dānjīng

单晶

[單晶]

monocrystalline

dānlìng

单另

[單另]

separately and exclusively
specially

chuándān

传单

[傳單]

leaflet; flier; pamphlet

dāndiǎn

单点

[單點]

to order à la carte
single point (of measurement, mounting etc)

mǎidān

买单

[買單]

to pay the restaurant bill

nándān

男单

[男單]

men's singles (in tennis, badminton etc)

dānfēi

单非

[單非]

a couple in which one of the spouses is not a Hong Kong citizen

dānwèi

单位

[單位]

unit (of measure)
unit (group of people as a whole)
work unit (place of employment, esp. in the PRC prior to economic reform)
CL:個／个 (gè)

dānbǎi

单摆

[單擺]

simple pendulum (physics)

yùndān

运单

[運單]

way bill
transport charge

bèidān

被单

[被單]

(bed) sheet
envelope for a padded coverlet
CL:床 (chuáng)

huàndān

换单

[換單]

bill of exchange (international trade)

dānzhāng

单张

[單張]

flyer
leaflet
single-sheet (map etc)

dānmáng

单盲

[單盲]

single-blind (scientific experiment)

xuǎndān

选单

[選單]

(software) menu

dānguò

单过

[單過]

to live independently
to live on one's own

dāngè

单铬

[單鉻]

monochrome

bàodān

报单

[報單]

a tax declaration form
a tax return

dānzì

单字

[單字]

single Chinese character
word (in a foreign language)

dānsè

单色

[單色]

monochrome
monochromatic
black and white

dānchǎn

单产

[單產]

yield per unit area

dìngdān

订单

[訂單]

(purchase) order

dāndú

单独

[單獨]

alone
by oneself
on one's own

zhàngdān

账单

[賬單]

bill

bǎodān

保单

[保單]

guarantee slip

dānxíng

单行

[單行]

to come individually
to treat separately
separate edition
one-way traffic

dānxié

单鞋

[單鞋]

unpadded shoes

bǎngdān

榜单

[榜單]

list of successful applicants for college admission
list of people or entities ranked highest according to some metric

dānguǐ

单轨

[單軌]

monorail

dānshù

单数

[單數]

positive odd number (also written 奇數／奇数)
singular (grammar)

dānyǎn

单眼

[單眼]

ommatidium (single component of insect's compound eye)
one eye (i.e. one's left or right eye)

dānshēn

单身

[單身]

unmarried; single
alone

Xīdān

西单

[西單]

Xidan neighborhood of central Beijing

shīdān

失单

[失單]

list of lost or stolen articles

dāncè

单侧

[單側]

one-sided
unilateral

dāncéng

单层

[單層]

single layer
single story
single deck
single level

dāndǎ

单打

[單打]

singles (in sports)
CL:場／场 (chǎng)

dānqīn

单亲

[單親]

single parent

dānyòng

单用

[單用]

to use (sth) on its own

bùdān

不单

[不單]

not the only
not merely
not simply

dānhào

单号

[單號]

odd number (on a ticket, house etc)

tídān

提单

[提單]

bill of lading

dānshè

单射

[單射]

(math.) one-to-one function; injective map

dānzi

单子

[單子]

list of items
bill
form
bedsheet

dāngàng

单杠

[單槓]

bar
bold line
horizontal bar (gymnastics event)

chuángdān

床单

[床單]

bed sheet
CL:條／条 (tiáo),件 (jiàn),張／张 (zhāng),床 (chuáng)

dāngàn

单干

[單幹]

to work on one's own
to work single-handed
individual farming

fádān

罚单

[罰單]

violation ticket
infringement notice

dāndān

单单

[單單]

only
merely
just

dānchún

单纯

[單純]

simple
pure
unsophisticated
merely
purely

yàngdān

样单

[樣單]

sample sheet; form
(computing) stylesheet

dānshǒu

单手

[單手]

one hand
single-handed

dānqǔ

单曲

[單曲]

single (recording industry)

dānge

单个

[單個]

single
alone
individually
an odd one

píngdān

凭单

[憑單]

bill of warrant (certificate, allowing one to collect money or valuables)

míngdān

名单

[名單]

list of names

dānwěn

单稳

[單穩]

monostable
single-side stable (relays)

pàidān

派单

[派單]

to hand out leaflets
(of a platform, e.g. Uber, DiDi) to dispatch orders

dānzǐ

单子

[單子]

the only son of a family
(functional programming or philosophy) monad

dānjiàn

单键

[單鍵]

single bond (chemistry)

dānjí

单极

[單極]

unipolar
monopole (physics)

dānxiàng

单相

[單相]

single phase (elec.)

máidān

埋单

[埋單]

to pay the bill (in a restaurant etc) (loanword from Cantonese)
(fig.) to bear responsibility

dāntuán

单团

[單團]

ad hoc group (tour group with a customized itinerary)

jièdān

借单

[借單]

receipt for a loan
written confirmation of a debt
IOU

Dāncōng

单枞

[單樅]

variant of 單叢／单丛 ( Dāncōng)

dānyuán

单元

[單元]

unit (forming an entity)
element
(in a residential building) entrance or staircase

dāntáng

单糖

[單糖]

monosaccharide

táodān

逃单

[逃單]

to dine and dash

jiédān

结单

[結單]

statement of account

jiǔdān

酒单

[酒單]

wine list (in a restaurant etc)

dāntǐ

单体

[單體]

monomer (chemistry)

dānchuán

单传

[單傳]

to have only one heir in a generation (of a family, clan etc)
to be learned from only one master (of a skill, art etc)

dānzhì

单质

[單質]

simple substance (consisting purely of one element, such as diamond)

dānfēi

单飞

[單飛]

to fly solo
(fig.) (of a band member) to go solo; (of an employee) to leave and start up one's own company

dānduān

单端

[單端]

(electronics) single-ended

guàdān

挂单

[掛單]

see 掛褡／挂褡 (guàdā)

dānjù

单据

[單據]

receipts
invoices
transaction records

càidān

菜单

[菜單]

menu
CL:份 (fèn),張／张 (zhāng)

dānrén

单人

[單人]

one person
single (room, bed etc)

xiàdān

下单

[下單]

to place an order
to order
an order (of goods)

dānzhèng

单证

[單證]

(international trade) documentation (e.g. a bill of lading)

nüdān

女单

[女單]

women's singles (in tennis, badminton etc)

kāidān

开单

[開單]

to bill
to open a tab

biǎodān

表单

[表單]

form (document)

dānyī

单一

[單一]

single
only
sole

dānmó

单模

[單模]

single mode

tuōdān

脱单

[脫單]

to find oneself a partner

luòdān

落单

[落單]

to be on one's own; to be left alone
to be left out

dāntiǎo

单挑

[單挑]

to pick
to choose
to fight a duel
Taiwan pr. (dāntiāo)

dānbàn

单瓣

[單瓣]

single petal
single valve

chányú

单于

[單于]

king of the Xiongnu 匈奴 ( Xiōngnu)

dāncí

单词

[單詞]

word
CL:個／个 (gè)

huídān

回单

[回單]

receipt

dānrì

单日

[單日]

on a single day

dāntàng

单趟

[單趟]

single trip

dānxiàng

单向

[單向]

unidirectional

dānbó

单薄

[單薄]

weak
frail
thin
flimsy

jiǎndān

简单

[簡單]

simple; not complicated

dānjù

单句

[單句]

simple sentence (grammar)

zhàndān

栈单

[棧單]

cargo receipt
landing account
warehouse or storage receipt
CL:張／张 (zhāng)

dìngdān

定单

[定單]

variant of 訂單／订单 (dìngdān)

dānchē

单车

[單車]

(coll.) bike; bicycle (esp. bike-share bicycle)

dāndiào

单调

[單調]

monotonous

dānbīng

单兵

[單兵]

individual soldier
(literary) isolated military unit, cut off from reinforcements

gōngdān

工单

[工單]

work order

qīngdān

清单

[清單]

list of items

dānjià

单价

[單價]

unit price

Dāncōng

单丛

[單叢]

a class of oolong tea

dānkù

单裤

[單褲]

unlined trousers
summer trousers

dānliàn

单链

[單鏈]

single chain
refers to RNA as opposed to the double helix DNA

dānyǔ

单语

[單語]

monolingual

dānliàn

单恋

[單戀]

unrequited love
one-sided love

dānbiān

单边

[單邊]

unilateral

dāntào

单套

[單套]

single set

yàdānwèi

亚单位

[亞單位]

subunit

dānyīmǎ

单一码

[單一碼]

Unicode
also written 統一碼／统一码

dānwèiyuán

单位元

[單位元]

identity element (math.)

dānyuánlùn

单源论

[單源論]

theory of single origin (of mankind)

tōngzhīdān

通知单

[通知單]

notification
notice
ticket
receipt

dānbāozǎo

单胞藻

[單胞藻]

single-celled algae

dānbèitǐ

单倍体

[單倍體]

haploid (single chromosome)

tíngsǔndān

停损单

[停損單]

stop-loss order (finance)

dānrénjiān

单人间

[單人間]

single room (hotel)

dìjīdān

地积单

[地積單]

unit of area (e.g. 畝／亩 (mǔ), Chinese acre)

zhǐsǔndān

止损单

[止損單]

stop-loss order (finance)

nánzǐdān

男子单

[男子單]

men's singles (sports)

dānsèhuà

单色画

[單色畫]

monochrome picture
black and white picture

jièshūdān

借书单

[借書單]

book slip

dānpiànjī

单片机

[單片機]

microcontroller
one-chip computer

dānfǎnjī

单反机

[單反機]

see 單反相機／单反相机 (dānfǎnxiàngjī)

dānxiāngsī

单相思

[單相思]

one-sided lovesickness; unrequited longing

càidāntiáo

菜单条

[菜單條]

menu bar (of a computer application)

dānshēngǒu

单身狗

[單身狗]

(Internet slang) person who is neither married nor in a relationship (used self-deprecatingly)

shēnbàodān

申报单

[申報單]

declaration form

tàidānwèi

肽单位

[肽單位]

peptide unit (on protein chain)

dānwèigēn

单位根

[單位根]

(math.) root of unity

lüdānzhì

氯单质

[氯單質]

molecular chlorine

zǒngyùndān

总运单

[總運單]

master air waybill (MAWB) (transport)

dānbǎnjī

单板机

[單板機]

single-board computer

dānfàngjī

单放机

[單放機]

tape player
video player
(media) player
play-only device

dānyīnjié

单音节

[單音節]

monosyllabic
a monosyllable

jiǎndānhuà

简单化

[簡單化]

simplification
to simplify

kāifádān

开罚单

[開罰單]

to issue an infringement notice

dānyīncí

单音词

[單音詞]

monosyllabic word

dānxìbāo

单细胞

[單細胞]

(of an organism) single-celled; unicellular

dānfángchā

单房差

[單房差]

single supplement (for a hotel room)

dānjiānbāo

单肩包

[單肩包]

shoulder bag

dānyuánfáng

单元房

[單元房]

apartment

lǐngliàodān

领料单

[領料單]

material requisition form

dānhuángguǎn

单簧管

[單簧管]

clarinet

dānyǐnhào

单引号

[單引號]

single quotes

dānwèiyào

单味药

[單味藥]

medicine made from a single herb
drug made from a single substance

dānsùchē

单速车

[單速車]

single-speed bicycle; fixed-gear bicycle

hēimíngdān

黑名单

[黑名單]

blacklist

jiāokuǎndān

交款单

[交款單]

payment slip

dānxíngdào

单行道

[單行道]

one-way street

jièdānr

借单儿

[借單兒]

receipt for a loan
written confirmation of a debt
IOU

càidānlán

菜单栏

[菜單欄]

menu bar (computing)

bùjiǎndān

不简单

[不簡單]

not simple; rather complicated
remarkable; marvelous

dānjiǎotiào

单脚跳

[單腳跳]

to hop
to jump on one leg

dānyuángé

单元格

[單元格]

(spreadsheet) cell

bàojiàdān

报价单

[報價單]

quotation
price list
written estimate of price

dāngèr

单个儿

[單個兒]

erhua variant of 單個／单个 (dānge)

chéngjìdān

成绩单

[成績單]

school report or transcript

tíhuòdān

提货单

[提貨單]

bill of lading

xíngchéngdān

行程单

[行程單]

(e-ticket) itinerary receipt

dānníngsuān

单宁酸

[單寧酸]

tannic acid (loanword)

dānyuànzhì

单院制

[單院制]

unicameralism
single-house system

dānzǐyè

单子叶

[單子葉]

monocotyledon (plant family distinguished by single embryonic leaf, includes grasses, orchids and lilies)

dānfāngxiàng

单方向

[單方向]

unidirectional
single-aspect

huízhídān

回执单

[回執單]

receipt

gǔnchuángdān

滚床单

[滾床單]

(coll.) to have sex

xiàdìngdān

下订单

[下訂單]

to place an order (commerce)

dānxíngběn

单行本

[單行本]

single volume edition
offprint

dānshēnhàn

单身汉

[單身漢]

bachelor
unmarried man

dānbānkè

单班课

[單班課]

individual lesson
one-on-one class

báimíngdān

白名单

[白名單]

whitelist

bǎoxiǎndān

保险单

[保險單]

insurance policy (document)

dānrénchuáng

单人床

[單人床]

single bed
CL:張／张 (zhāng)

dānjiānchā

单间差

[單間差]

single supplement (for a hotel room)

dānchúncí

单纯词

[單純詞]

(linguistics) single-morpheme word
simple word

bàoshuìdān

报税单

[報稅單]

to declare to customs or to the taxman

xīnyuàndān

心愿单

[心願單]

wish list

dìngdānhào

订单号

[訂單號]

order number

dānshēnwāng

单身汪

[單身汪]

(Internet slang) person who is neither married nor in a relationship (used self-deprecatingly)

dānyùnmǔ

单韵母

[單韻母]

simple finals

zǐcàidān

子菜单

[子菜單]

(computing) submenu

dānfāngmiàn

单方面

[單方面]

unilateral

dānyǎnpí

单眼皮

[單眼皮]

single eyelid

cúnkuǎndān

存款单

[存款單]

certificate of deposit

hóngmíngdān

红名单

[紅名單]

whitelist

xiùdānzhì

溴单质

[溴單質]

molecular bromine

dānfēngtuó

单峰驼

[單峰駝]

dromedary

dānxíngxiàn

单行线

[單行線]

one-way road

dānchēzú

单车族

[單車族]

cyclist

huídānr

回单儿

[回單兒]

erhua variant of 回單／回单 (huídān)

dāncéngtǎ

单层塔

[單層塔]

single-storied pagoda

dānlúnchē

单轮车

[單輪車]

unicycle

dānzhānghuìpiào

单张汇票

[單張匯票]

sola bill of exchange (international trade)

dānwèixìntuō

单位信托

[單位信托]

unit trust (finance)

dānfāngzhìjì

单方制剂

[單方製劑]

prescribed preparation

dānqiāngpǐmǎ

单枪匹马

[單槍匹馬]

lit. single spear and horse (idiom); fig. single-handed
unaccompanied

tiānwéndānwèi

天文单位

[天文單位]

astronomical unit (AU)

zhòngliàngdānwèi

重量单位

[重量單位]

unit of weight

cídānjízǐ

磁单极子

[磁單極子]

magnetic monopole

dānfāngxuāngào

单方宣告

[單方宣告]

unilateral declaration

dānkǒuxiàngshēng

单口相声

[單口相聲]

comic monologue
one-person comic sketch

Móbài Dānchē

摩拜单车

[摩拜單車]

Mobike, operator of an app-driven bicycle-rental business in China, established in 2015

chángdùdānwèi

长度单位

[長度單位]

unit of length

jiǎndānmíngliǎo

简单明了

[簡單明瞭]

clear and simple
in simple terms

dānyǎnxiàngjī

单眼相机

[單眼相機]

single-lens reflex camera (Tw)

dānsèzhàopiàn

单色照片

[單色照片]

monochrome photo
black and white picture

suǒshǔdānwèi

所属单位

[所屬單位]

affiliated unit
subsidiary

dānyìfēijī

单翼飞机

[單翼飛機]

monoplane

dānliánjiēzhàn

单连接站

[單連接站]

single attachment station (telecommunications)

xíngzhèngdānwèi

行政单位

[行政單位]

administrative unit (e.g. province 省 (shěng), prefecture 地區／地区 (dìqū) or county 縣／县 (xiàn))

zhàodānquánshōu

照单全收

[照單全收]

to accept without question
to take sth at face value

juéxuǎnmíngdān

决选名单

[決選名單]

short list

dānbǎnhuáxuě

单板滑雪

[單板滑雪]

to snowboard

dāngēndúmiáo

单根独苗

[單根獨苗]

an only child

dānyīdēngrù

单一登入

[單一登入]

(Tw) single sign-on (SSO)

dānwèifànzuì

单位犯罪

[單位犯罪]

crime committed by an organization

jiéyǐnggūdān

孑影孤单

[孑影孤單]

to be all alone by oneself

dānrénshāfā

单人沙发

[單人沙發]

(upholstered) armchair

dāndǎdúdòu

单打独斗

[單打獨鬥]

to fight alone (idiom)

gōngzuòdānwèi

工作单位

[工作單位]

work unit

dānmóguāngxiān

单模光纤

[單模光纖]

single-mode optical fiber

mǔtāidānshēn

母胎单身

[母胎單身]

never been in a romantic relationship

dānhéxìbāo

单核细胞

[單核細胞]

monocyte
mononuclear cell

yīdānshíbó

衣单食薄

[衣單食薄]

thin coat, meager food (idiom); life of wretched poverty
destitute

jīběndānwèi

基本单位

[基本單位]

basic unit
fundamental building block

xíngdān-yǐngzhī

形单影只

[形單影隻]

(idiom) lonely soul; solitary

hónghēimíngdān

红黑名单

[紅黑名單]

whitelist and blacklist, i.e. 紅名單／红名单 (hóngmíngdān) and 黑名單／黑名单 (hēimíngdān)

yǒuxiàndānyuán

有限单元

[有限單元]

finite element (method)

gōngzhìdānwèi

公制单位

[公制單位]

metric units

shīgōngdānwèi

施工单位

[施工單位]

unit in charge of construction
builder

hángkōngyùndān

航空运单

[航空運單]

Air Waybill (AWB)

dānyīhuòbì

单一货币

[單一貨幣]

single currency

dāndiǎndēnglù

单点登录

[單點登錄]

single sign-on (SSO)

dāndiǎngùzhàng

单点故障

[單點故障]

single point of failure

dānrénpǐmǎ

单人匹马

[單人匹馬]

single-handedly (idiom)

tǐjīdānwèi

体积单位

[體積單位]

unit of volume

dānshēnguìzú

单身贵族

[單身貴族]

fig. unmarried person
single person (especially one who is comfortable financially)

guójìdānwèi

国际单位

[國際單位]

international unit

dāndiàofáwèi

单调乏味

[單調乏味]

monotonous
dull
tedious (idiom)

dāndāofùhuì

单刀赴会

[單刀赴會]

lit. to go among enemies with only one's sword (idiom)
fig. to go alone into enemy lines

shìyèdānwèi

事业单位

[事業單位]

public institution
(Tw) business enterprise; company; firm

dānchúnpàozhěn

单纯疱疹

[單純皰疹]

herpes simplex (med.)

dānfāngkǒnghè

单方恐吓

[單方恐嚇]

unilateral threat

rèliàngdānwèi

热量单位

[熱量單位]

thermal unit
unit of heat

dānwèixiàngliàng

单位向量

[單位向量]

(math.) unit vector

dānbiānzhǔyì

单边主义

[單邊主義]

unilateralism

mókuàidānyuán

模块单元

[模塊單元]

modular unit

dānfāngjuédìng

单方决定

[單方決定]

to decide without reference to other parties involved
unilateral decision

dāndāozhírù

单刀直入

[單刀直入]

to get straight to the point (idiom)

jiǎndāndeshuō

简单地说

[簡單地說]

to put it simply; simply put

hòubǔmíngdān

候补名单

[候補名單]

waiting list

shēngchǎndānwèi

生产单位

[生產單位]

production unit

dānqīnjiātíng

单亲家庭

[單親家庭]

single parent family

dānxiàngdiànliú

单向电流

[單向電流]

(elec.) unidirectional current
DC
also written 直流 (zhíliú)

dānfǎnxiàngjī

单反相机

[單反相機]

single-lens reflex camera (SLR)

chùfāqīngdān

触发清单

[觸發清單]

trigger list

huòbùdānxíng

祸不单行

[禍不單行]

misfortune does not come singly (idiom)
it never rains but it pours

dānyèshuāngqūmiàn

单叶双曲面

[單葉雙曲面]

hyperboloid of one sheet (math.)

guòfènjiǎndānhuà

过份简单化

[過份簡單化]

oversimplification
to oversimplify

yínhángduìzhàngdān

银行对账单

[銀行對賬單]

bank statement

dānyuánduōbèitǐ

单源多倍体

[單源多倍體]

autopolyploid (polyploid with chromosomes of single species)

dānxìbāoshēngwù

单细胞生物

[單細胞生物]

single-celled organism

dānjiǎohuáxíngchē

单脚滑行车

[單腳滑行車]

scooter

guójìdānwèizhì

国际单位制

[國際單位制]

International System of Units

dānwèiqiēxiàngliàng

单位切向量

[單位切向量]

(math.) unit tangent vector

Fēizhōudānyuánshuō

非洲单源说

[非洲單源說]

single origin out of Africa (current mainstream theory of human evolution)

yàyīnjiédānwèi

亚音节单位

[亞音節單位]

subsyllabic unit

shàngxiàwéncàidān

上下文菜单

[上下文菜單]

context menu (computing)

shuǐshàngdiàndānchē

水上电单车

[水上電單車]

see 水上摩托車／水上摩托车 (shuǐshàngmótuōchē)

fèiyòngbàoxiāodān

费用报销单

[費用報銷單]

expense claim form

dānkèlóngkàngtǐ

单克隆抗体

[單克隆抗體]

monoclonal antibody

dānjìngfǎnguāngxiàngjī

单镜反光相机

[單鏡反光相機]

single-lens reflex camera (SLR)

dānchúnpàozhěnbìngdú

单纯疱疹病毒

[單純皰疹病毒]

herpes simplex virus (HSV, med.)

dānfāngguòshīpèngzhuàng

单方过失碰撞

[單方過失碰撞]

collision in which only one party is at fault

dānhéxìbāozēngduōzhèng

单核细胞增多症

[單核細胞增多症]

mononucleosis

dāncíchǎnshēngqìmóxíng

单词产生器模型

[單詞產生器模型]

logogen model

dānduānbāoméixīlèidúsù

单端孢霉烯类毒素

[單端孢霉烯類毒素]

trichothecenes (TS, T-2)

tóunǎojiǎndānsìzhīfādá

头脑简单四肢发达

[頭腦簡單四肢發達]

all brawn no brains

jiǎndānwǎngluòguǎnlǐxiéyì

简单网络管理协议

[簡單網絡管理協議]

Simple Network Management Protocol
SNMP

Quánguó Zhòngdiǎn Wénwù Bǎohù Dānwèi

全国重点文物保护单位

[全國重點文物保護單位]

Major Historical and Cultural Site Protected at the National Level

dānsībùchéngxiàn,dúmùbùchénglín

单丝不成线，独木不成林

[單絲不成線，獨木不成林]

(idiom) one strand does not make a thread, one tree does not make a forest