小三 xiǎosān mistress Origin Definitions Defs Strokes Stroke Words Sentences Sents xiǎosān mistress 小 xiǎo concubine (informal) concubine; mistress三 sān numeral third the third in a series; ordinal number threexiǎosān third grade 小 xiǎo adjective small small; tiny; few; minor; in area, volume, quantity, or power, being less than average or less than the object of comparison; opposite of 大 dà三 sān numeral three the number three; 3xiǎosān third child 小 xiǎo adjectiveaffix [address term] prefix added to a surname or given name as a friendly way to address a younger person三 sān numeral third the third in a series; ordinal number three