孤

遗孤

yí gū

orphan

鳏寡孤独

guān guǎ gū dú

lit. widowers, widows, orphans and the childless (idiom)

一意孤行

yī yì gū xíng

obstinately clinging to one's course (idiom)

天煞孤星

tiān shà gū xīng

bane of others' existence

孑影孤单

jié yǐng gū dān

to be all alone by oneself

孤注一掷

gū zhù yī zhì

to stake all on one throw

孤例

gū lì

isolated case; sole instance

孤傲

gū ào

proud and aloof

孤僻

gū pì

antisocial

孤儿

gū ér

orphan

孤儿药

gū ér yào

orphan drug

孤儿院

gū ér yuàn

orphanage