(modal) After only a superficial examination or review

(of a gun) Able to fire bullets in quick succession. / (of a series of questions, etc.) Delivered in a rapid continuous stream.

Familiar with someone, such that one can address them by their first name. / (by extension, humorous) In regular contact with a person or organisation.

Alternative spelling of first cause

(theology, philosophy, sometimes capitalized) An initial cause from which all other causes and effects follow.

(philosophy) The initial agent that is the cause of all things; the prime mover.

(of a fabled animal, such as a dragon) That shoots fire from the mouth or nostrils / (idiomatic) caustic, vitriolic or scathing

Alternative spelling of fire-breathing

One's first instance of sexual intercourse. / Used other than figuratively or idiomatically: see first, time.

(law) A provision in a contract that permits a party to that contract or another named party to have an opportunity to purchase, use, or otherwise obtain a specified object before it is offered to any other party.