One - out
- one
- one
- one for the books
- one for the books
- one and all
- one and only
- one and the same
- one and the same
- one at a time
- one brick shy of a load
- one by one
- One cannot be in two places at once.
- One cannot love and be wise.
- one damn thing after another
- one damn thing after another
- one eye on
- one eye on
- one eye on someone or something
- one false move
- one final thing
- one final word
- one foot in the grave
- one foot in the grave
- one for the (record) books
- one for the road
- One good turn deserves another.
- One hand for oneself and one for the ship.
- One has to draw the line somewhere.
- one in a hundred
- one in a million
- one in a thousand
- one jump ahead (of someone or something)
- one law for the rich and another for the poor
- one little bit
- One man's loss is another man's gain.
- one man's meat is another man's poison
- one man's meat is another man's poison
- One man's meat is another man's poison.
- One man's trash is another man's treasure.
- One moment, please.