卧底

Traditional (Taiwan): 臥底

Traditional (Hong Kong): 卧底

wòdǐ ㄨㄛˋ ㄉㄧˇ

    • to hide (as an undercover agent)
    • an insider (in a gang of thieves)
    • a mole

Character by character

Other words read wòdǐ

wodi with other tones

Sources