to go out and come in; entrance and exit; expenditure and income; discrepancy; inconsistent[cedict]
通用
tōng yòngㄊㄨㄥ ㄩㄥˋ
common (use); interchangeable[cedict]
道
dàoㄉㄠˋ
direction; way; method; road; path; classifier for long thin stretches, rivers, roads etc; principle; truth; morality; reason; skill; method; Dao (of Daoism); to say; to speak; to talk[cedict]