Something of the smallest possible extent; an indivisible unit.
Used for forming superlatives of adjectives, especially those that do not form the superlative by adding -est.
In the smallest or lowest degree; in a degree below all others.
The most little; the smallest amount or quantity of something.
At least.
What a stupid white privileged POS I am! Least I call myself out.
2019 December, Justin Blackburn, The Bisexual Christian Suburban Failure Enlightening Bipolar Blues, page 79
Used other than figuratively or idiomatically: see number, one.
The main goalkeeper of a team, so-called because they wear the number 1 on the back of their kit.
The most important person, the one who is in charge.
Urine; urination.
A large town where theatrical performances may expect to achieve success.
Oneself, being considered foremost, as by an egoist.
Someone who is top of a ranking, who is ranked first.
The batsman who opens the batting.
The single that has sold the most in a given period.
A first lieutenant.
First; foremost; best, often used after its headword.