n. a word or expression used for some particular thing
n. a limited period of time
n. any distinct quantity contained in a polynomial
n. one of the substantive phrases in a logical proposition
n. 术语, 专有名词, 期限, 学期, 任期, 条件, 价钱, 关系, 地位, 项, 界石
vt. 称, 呼
[计] 检索词; 项