(bound form) black; dark; raven-colored

(bound form) crow

(literary) how; where; used to introduce a rhetorical question, equivalent to 哪里 nǎ​li or 怎么 zěn​me

the surname Wu

abbreviation for country names such as 乌克兰 wū​kè​lán or 乌兹别克斯坦 wū​zī​bié​kè​sī​tǎn

(bound form) used in phonetic transcriptions like 乌拉 wù​la or 乌拉草 wù​la​cǎo

(literary) the sun, based on the legend of the golden crow inhabiting it