Collocations for acquaintance - noun

casual
I bumped into a casual acquaintance in town.

casual, new | close, old | business, mutual, personal, social

bump into, meet | greet (sb as)
He was greeted as an old acquaintance.

friends and acquaintances

nodding, passing, slight
a man with whom I had a passing acquaintance

brief, short | close, intimate

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

of sb''s ~
He introduced me to a lady of his acquaintance.

~ with
her acquaintance with modern French philosophy

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