adjective

familiar

familiar, well-known, acquainted

His face seems familiar to me.

His face seems familiar to me.

Are you familiar with this topic?

Are you familiar with this topic?

((sth.)) be familiar to ((sb.)) for sth. to be known to sb. His face seems familiar to me.

((sb.)) be familiar with ((sth.)) for sb. to know about sth. Are you familiar with this topic?

Synonyms: well-known, acquainted, common; Antonyms: unfamiliar, strange, unknown

From Latin 'familiaris', meaning 'of the household', from 'familia' (family).

Think of your 'family'; you are 'familiar' with them. If something is familiar, it's like part of the family.

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