Usage of the character 沟

(fig.) gulf; chasm; wide gap
(originally) the Hong Canal in Henan, which in ancient times formed the border between enemies Chu 楚 ( Chǔ) and Han 漢／汉 ( Hàn)

gōujiàn

沟涧

[溝澗]

gully
ravine

hégōu

河沟

[河溝]

brook
ditch

xǐgōu

洗沟

[洗溝]

to roll a ball into the gutter (ten-pin bowling)

bǎngōu

板沟

[板溝]

chalkboard ledge
whiteboard ledge
chalk tray (at the foot of a blackboard)
whiteboard marker tray

rǔgōu

乳沟

[乳溝]

cleavage (hollow between a woman's breasts)

gǔgōu

股沟

[股溝]

buttock cleavage
butt crack

gōuhè

沟壑

[溝壑]

gorge
gulch
ravine
deep ditch

gōucáo

沟槽

[溝槽]

groove
furrow
trench

bīnggōu

冰沟

[冰溝]

crevasse

gōutōng

沟通

[溝通]

to join; to connect; to link up
to communicate

bíchúngōu

鼻唇沟

[鼻唇溝]

nasolabial fold
smile lines
laugh lines

Lúgōu Qiáo

卢沟桥

[盧溝橋]

Lugou Bridge or Marco Polo Bridge in southwest of Beijing, the scene of a conflict that marked the beginning of the Second Sino-Japanese War 抗日戰爭／抗日战争 ( Kàng Rì Zhànzhēng)

dìgōuyóu

地沟油

[地溝油]

illegally recycled waste cooking oil

Mǎtàigōu

马太沟

[馬太溝]

Mataigou town in Pingluo county 平羅縣／平罗县 ( Píngluóxiàn), Shizuishan 石嘴山 ( Shízuǐshān), Ningxia

jiǎgōuyán

甲沟炎

[甲溝炎]

paronychia (medicine)

fùgǔgōu

腹股沟

[腹股溝]

groin (anatomy)

Fúgōuxiàn

扶沟县

[扶溝縣]

Fugou county in Zhoukou 周口 ( Zhōukǒu), Henan

páishuǐgōu

排水沟

[排水溝]

gutter

Méntóugōu

门头沟

[門頭溝]

Mentougou, a district of Beijing

Lóngtángōu

龙潭沟

[龍潭溝]

Longtan Ravine, scenic area in Xixia county 西峽縣／西峡县 ( Xīxiáxiàn), Nanyang 南陽／南阳 ( Nányáng), Henan

dàhǎigōu

大海沟

[大海溝]

marine trench

Lúgōu Qiáo

芦沟桥

[蘆溝橋]

Lugou Bridge or Marco Polo Bridge in southwest of Beijing, the scene of a conflict that marked the beginning of the Second Sino-Japanese War 抗日戰爭／抗日战争 ( Kàng Rì Zhànzhēng)

Dōnggōuzhèn

东沟镇

[東溝鎮]