What does acquaintance mean?
An acquaintance is a person one knows slightly, but who falls short of being a friend — someone recognized and greeted, yet not part of one's inner circle. The word also carries a second, older sense: knowledge or familiarity with a subject or thing, as in having 'a passing acquaintance with classical music.' In everyday use, acquaintances occupy the broad middle ground of our social world: colleagues seen at meetings, neighbours exchanged pleasantries with, contacts met once at a gathering. The term is neutral in tone but socially meaningful, since distinguishing an acquaintance from a friend quietly marks the depth of a relationship. Certain fixed phrases give the word particular polish — 'to make someone's acquaintance' is a gracious way to describe a first meeting, while 'a nodding acquaintance' describes someone acknowledged only with a nod. Derived forms include the verb 'acquaint,' the adjective 'acquainted,' and the rarer noun 'acquaintanceship.' Useful and precise, the word captures the vast, understated territory between stranger and friend.
A person one knows slightly, but who is not a close friend.
"I met her briefly at a conference, and she has remained a pleasant acquaintance ever since."
Often used to signal a relationship that is cordial but not intimate.
Knowledge or experience of a person, subject, or thing.
"His long acquaintance with the city's archives made him invaluable to the project."
This sense is somewhat formal and less common today than the person-oriented sense.
Pronounced either /əˈkweɪntənsɪz/ or /əˈkweɪntənsəz/; both are standard.
"Over the years she accumulated a wide circle of acquaintances across three continents."
In the 18th century, 'making an acquaintance' was practically a social ritual — introductions were so formalized that calling someone merely an acquaintance, not a friend, could be a pointed insult.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of acquaintance
The word derives from the Old French 'acointier,' meaning 'to make known,' which itself traces back to the Late Latin 'accognitare,' from Latin 'accognitus,' the past participle of 'accognoscere' — 'to come to know.' It entered English in the Middle English period, initially carrying the sense of familiarity or knowledge before settling into its modern person-oriented meaning. It shares this Latin root with words such as 'cognizance' and, more distantly, 'quaint.'
Related word forms
How acquaintance is actually used
The plural form can be pronounced either /əˈkweɪntənsɪz/ or /əˈkweɪntənsəz/, with both accepted in standard dictionaries. The word carries a neutral register but often appears in formal or polite contexts; describing someone as 'an acquaintance' rather than a friend signals social distance without hostility. The phrase 'to make someone's acquaintance' is a courteous, somewhat formal way of saying you have met them for the first time.
Easily confused with acquaintance
Acquaintance refers to either a person known slightly or knowledge of a subject, while acquaintanceship refers specifically to the state or relationship of being acquainted.
An acquaintance is someone you know casually, whereas a friend implies a close, affectionate bond.