One by one

One One, n. 1. A single unit; as, one is the base of all numbers. [1913 Webster]

2. A symbol representing a unit, as 1, or i. [1913 Webster]

3. A single person or thing. ``The shining ones.'' --Bunyan. ``Hence, with your little ones.'' --Shak. [1913 Webster]

He will hate the one, and love the other. --Matt. vi. 24. [1913 Webster]

That we may sit, one on thy right hand, and the other on thy left hand, in thy glory. --Mark x. 37. [1913 Webster]

{After one}, after one fashion; alike. [Obs.] --Chaucer.

{At one}, in agreement or concord. See {At one}, in the Vocab.

{Ever in one}, continually; perpetually; always. [Obs.] --Chaucer.

{In one}, in union; in a single whole.

{One and one}, {One by one}, singly; one at a time; one after another. ``Raising one by one the suppliant crew.'' --Dryden.

{one on one} contesting an opponent individually; -- in a contest.

{go one on one}, to contest one opponent by oneself; -- in a game, esp. basketball. [1913 Webster +PJC]