The first gear of an engine.
first base
A first-edition copy of some publication.
A fraction whose (integer) denominator ends in the digit 1.
Something that has never happened before; a new occurrence.
A first-class honours degree.
The person or thing in the first position.
For the first time.
Before anything else; firstly.
Now.
Preceding all others of a series or kind; the ordinal of one; earliest.
Of or belonging to a first family.
Most eminent or exalted; most excellent; chief; highest.
A leather tie; a short wagon rope.
A stretch of fishing-lines shot in the water.
A girth or belly-band for a horse's harness.
A surcingle, or strap of leather, used for binding a load upon the back of an animal.
Possessing or indicating lack; deficient.