- 似曾相识 sìcéngxiāngshí familiarseemingly familiar or appearing to have been met or seen before
- 素不相识 sùbùxiāngshí unacquaintedto be total strangers
- 老相识 lǎoxiāngshí old acquaintancea person whom one has known for a long time; an old friend
- 不打不相识 bùdǎbùxiāngshí friendship through conflictan idiom meaning that mutual understanding or friendship can often result from an initial conflict or fight; no discord, no concord
- 不打不成相识 bùdǎbùchéngxiāngshí conflict breeds friendshipAn exchange of blows may lead to friendship; out of conflict, friendship grows.
- 不相识 bùxiāngshí unacquaintednot knowing each other; to be strangers