Etymology

Adjective

1. Having no predecessor. The ordinal number corresponding to one.

Alternative forms

• 1st, 1^st; I

Noun

1. The person or thing in the first position.
2. The first gear of an engine.
3. Something that has never happened before; a new occurrence.

   This is a first. For once he has nothing to say.

4. first base

   There was a close play at first.

5. A first-class honours degree.