acquainted
adj.-
1 knowing a person (adj.) B2 Upper Intermediate Formalknowing someone personally, but not as a close friend.
personally known to one another; describes a relationship that is more than a stranger but less than a close friend.
ExampleWe are acquainted through work, but we have never met for coffee.
ExampleAlthough they had been professionally acquainted for several years, they had never discussed matters outside of their immediate legal cases.
UsageOften used in the phrase 'become acquainted with'.
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2 knowing a subject (adj.) B2 Upper Intermediate Formalhaving knowledge or information about a particular topic or situation.
having personal or shared knowledge of a subject, situation, or fact; typically follows the verb 'to be' or 'to get'.
ExampleYou should get acquainted with the safety rules before using the machine.
ExampleThe new manager spent her first week getting acquainted with the company's complex internal filing system.
UsageRequires the preposition 'with' when followed by an object.
PitfallI am acquainted to the new rules.I am acquainted with the new rules.Always use the preposition 'with' after acquainted when describing what you know.