A fraction whose (integer) denominator ends in the digit 1.
first base
A first-edition copy of some publication.
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 fractional part of an integer ending in one
An ordinal value that is represented by an expression ending in 1 such as the (n + 1)th.
'first', or other ordinal derivatives of 'one', such as hundred-and-oneth or minus-oneth
Used at the end of algebraic expressions indicating ordinal position that end in 1, such as (k+1)ᵗʰ