Usage of the character 暈

dizzy
halo
ring around moon or sun

yūn

晕

[暈]

confused
dizzy
giddy
to faint
to swoon
to lose consciousness
to pass out

guāngyùn

光晕

[光暈]

halo
(photography) halation

yūnsǐ

晕死

[暈死]

Geez!
Shoot!
No way!

yuèyùn

月晕

[月暈]

ring around the moon
lunar halo

yùnchí

晕池

[暈池]

to faint in the bathroom (from heat)

yūnxuàn

晕眩

[暈眩]

to feel dizzy
dizziness

yūnhu

晕糊

[暈糊]

dizzy
giddy

yuányùn

圆晕

[圓暈]

concentric circles
circular ripples

yǎnyùn

眼晕

[眼暈]

to feel dizzy

xuànyùn

眩晕

[眩暈]

vertigo
dizziness
fainting
feeling of swaying, head spinning, lack of balance or floating (e.g. from a stroke)
Taiwan pr. (xuànyūn)

tóuyūn

头晕

[頭暈]

dizzy

yùnchuán

晕船

[暈船]

to become seasick

yūnjué

晕厥

[暈厥]

to faint

míyūn

迷晕

[迷暈]

to knock sb out with a drug
to render sb unconscious

diànyùn

电晕

[電暈]

corona discharge

yūndǎo

晕倒

[暈倒]

to faint
to swoon
to black out
to become unconscious

xuèyùn

血晕

[血暈]

coma caused by loss of blood
fainting at the sight of blood
Taiwan pr. (xiěyūn)

yūncài

晕菜

[暈菜]

(dialect) to get confused; to be dumbfounded; to get dizzy

yùnzhēn

晕针

[暈針]

to faint during acupuncture or injection

yùnjī

晕机

[暈機]

to become airsick

yūntóu

晕头

[暈頭]

dizzy

yùnxuè

晕血

[暈血]

to feel sick when seeing blood

xiěyùn

血晕

[血暈]

bruise
pale red

jīyūn

击晕

[擊暈]

to stun
to render unconscious (with a blow)

yāoyūn

要晕

[要暈]

confused
dazed

fāyūn

发晕

[發暈]

to feel dizzy

hóngyùn

红晕

[紅暈]

to blush
to flush red

yùnchǎng

晕场

[暈場]

to faint from stress (during exam, on stage etc)

yùnchē

晕车

[暈車]

to be carsick

yūnhu

晕乎

[暈乎]

dizzy
giddy

rǔyùn

乳晕

[乳暈]

mammary areola

yùnrǎn

晕染

[暈染]

to smudge (become smeared)
to smudge (create a blurred effect)
shading (wash painting technique)

yùngāor

晕高儿

[暈高兒]

to feel giddy on heights
vertigo

yùnxuèzhèng

晕血症

[暈血症]

blood phobia

rìyuèyùn

日月晕

[日月暈]

halo
ring of light around the sun or moon

yūntóuzhuànxiàng

晕头转向

[暈頭轉向]

confused and disoriented

tóuyūnyǎnhuā

头晕眼花

[頭暈眼花]

to faint with blurred vision (idiom); dizzy and eyes dimmed

tóuyūnnǎozhàng

头晕脑胀

[頭暈腦脹]

dizzy and light-headed

tóuyūnnǎozhàng

头晕脑涨

[頭暈腦漲]

variant of 頭暈腦脹／头晕脑胀 (tóuyūnnǎozhàng)

tóuyūnmùxuàn

头晕目眩

[頭暈目眩]

to have a dizzy spell
dazzled

tóuhūnyǎnyūn

头昏眼晕

[頭昏眼暈]

head spinning and blurred vision
giddy
in a faint

tóuhūnmùyūn

头昏目晕

[頭昏目暈]

see 頭昏目眩／头昏目眩 (tóuhūnmùxuàn)

zhōuwéixìngxuànyùn

周围性眩晕

[周圍性眩暈]

peripheral vertigo

ěryuánxìngxuànyùn

耳源性眩晕

[耳源性眩暈]

aural vertigo