first base
A first-edition copy of some publication.
A fraction whose (integer) denominator ends in the digit 1.
The first gear of an engine.
Something that has never happened before; a new occurrence.
A first-class honours degree.
The person or thing in the first position.
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.
For the first time.
Before anything else; firstly.
Now.
A second-rate ship of the line.
Of a Royal Navy ship of the line in the Napoleonic Era: having 80–98 guns across three gun decks, a complement of 700–750, and weighing approximately 2,200 tons burthen.
Of mediocre quality; not first-rate.