Question

Casual acquaintances He will certainly have friends, neighbours, and casual acquaintances. e.g.The majority were introduced to injection by a casual acquaintance. e.g.You may have known some one else for twenty years and yet he will never be more than a casual acquaintance.

Accepted Answer

people who you know on a basic level, but with whom you don’t have a significant relationship.

collocation	Casual acquaintances
definition	people who you know on a basic level, but with whom you don’t have a significant relationship.
examples	He will certainly have friends, neighbours, and casual acquaintances. e.g.The majority were introduced to injection by a casual acquaintance. e.g.You may have known some one else for twenty years and yet he will never be more than a casual acquaintance.

Casual Acquaintance People Basic Level Don’t Significant Relationship