thin adj.
1 of solid things: not thick
VERBS be, feel, look, seem | become, wear The fabric was wearing thin. (figurative) That joke is wearing a little thin.
ADV. extremely, incredibly, very, wafer-a plate of wafer-thin bread and butter | a bit, fairly, a little, quite, rather, relatively | enough a sliver of rock thin enough to be translucent
2 not fat
VERBS be, look | become, get, grow
ADV. extremely, painfully, pathetically, pitifully, terribly, very The old horse was painfully thin. | fairly, quite, rather She's tall and quite thin.
3 of liquids
VERBS be, look, seem The paint looks a bit thin. | become, get Be careful that the mixture doesn't get too thin.
ADV. terribly, very | a bit, rather
You can also check other dicts: thin (English, 中文解释 ), wordnet sense, Collins Definition