The set of basic statements on which a method, theory, or organisation is founded.

Alternative spelling of firsthand

Someone in the first team.

(sports) The first-choice lineup of players in a team who start the game.

(language education, grammar) A structure used to talk about possible events in the present or future, containing an "if" clause (with a verb in the present tense) and a main clause (with the future expressed by will + an infinitive verb).

The 1623 published collection of William Shakespeare's plays. The first such collection printed in folio format.

plural of first mover

plural of first grade

plural of first baseman

plural of first language