acquaintance
nounperson you know
ADJ. casual I bumped into a casual acquaintance in town.| casual, new | close, old | business, mutual, personal, social
VERB + ACQUAINTANCE bump into, meet | greet (sb as) He was greeted as an old acquaintance.
PHRASES friends and acquaintancesknowledge of sb/sth
ADJ. nodding, passing, slight a man with whom I had a passing acquaintance| brief, short | close, intimate
VERB + ACQUAINTANCE make sb/sth's (= become acquainted with sb/sth) I first made his acquaintance in 1992.| strike up I first met Simon in 1998 and struck up an acquaintance with him.| renew
PREP. of sb's ~ He introduced me to a lady of his acquaintance.| ~ with her acquaintance with modern French philosophy
PHRASES have an acquaintance with They have little acquaintance with colloquial English.| on close/closer acquaintance, on first acquaintance On first acquaintance she seemed a little odd