(uncountable) The person or thing in the first position.
(uncountable) The first gear of an engine.
(countable) Something that has never happened before; a new occurrence.
(countable, baseball) first base
(countable, Britain, colloquial) A first-class honours degree.
(countable, colloquial) A first-edition copy of some publication.
(in combination) A fraction whose (integer) denominator ends in the digit 1.
(rare) To propose (a new motion) in a meeting, which must subsequently be seconded.
Preceding all others of a series or kind; the ordinal of one; earliest.
Most eminent or exalted; most excellent; chief; highest.
Of or belonging to a first family.
Coming right after the zeroth in things that use zero-based numbering.
Before anything else; firstly.
For the first time.
(Southeast Asia, Hong Kong, nonstandard) Now.