first name noun
plural ∼ names [count] : the name that comes first in someone's full name
▪ Children at the school call their teachers by their first names. — compare last name, middle name, surname
▪ Children at the school call their teachers by their first names. — compare last name, middle name, surname
— first–name adjective ◊People who are on a first-name basis (US) or on first-name terms (Brit) know each other well and address each other by their first names.
▪ He was on a first-name basis with his boss. ▪ They know most of the officials on a first-name basis. — sometimes used figuratively ▪ She was on a first-name basis with adversity. [=she experienced a lot of adversity]
▪ He was on a first-name basis with his boss. ▪ They know most of the officials on a first-name basis. — sometimes used figuratively ▪ She was on a first-name basis with adversity. [=she experienced a lot of adversity]
