Definition of first-name terms
◆People who are on first-name terms know each other well and address each other by their first names. He was on first-name terms with his boss. —sometimes used figuratively She was on first-name terms with adversity.
Word by Word Definitions
: a word or expression that has a precise meaning in some uses or is peculiar to a science, art, profession, or subject
: expression of a specified kind
: a limited or definite extent of time
: to apply a term to : call, name
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