n. a card game in which you play your sevens and other cards in sequence in the same suit as the sevens; you win if you are the first to use all your cards
n. the cardinal number that is the sum of six and one
n. one of four playing cards in a deck with seven pips on the face
n. 七年之痒, （因对配偶生厌而）想找个新的性伴侶( seven的复数形式 )