2
general::
In addition to the idioms beginning with ONE, Also see ALL IN ONE PIECE; ALL THE SAME (ONE); A-1 (AONE); AS ONE; AT ONE; AT ONE STROKE; AT ONE TIME; AT ONE TIME OR ANOTHER; BACK TO THE DRAWING BOARD (SQUARE ONE); EACH AND EVERY (LAST ONE); EACH OTHER (ONE ANOTHER); FAST ONE; FOR ONE, I; GO ONE BETTER; HANG (ONE) ON; HARP ON (ONE STRING); HOLE IN ONE; IN ONE EAR AND OUT THE OTHER; IN THE SAME (IN ONE) BREATH; IRONS IN THE FIRE, MORE THAN ONE; IT TAKES ONE TO KNOW ONE; JUST ONE OF THOSE THINGS; LOOK OUT FOR (NUMBER ONE); MORE THAN ONE WAY TO SKIN A CAT; NOT ONE IOTA; NUMBER ONE; ON THE ONE HAND; (ONE) PICTURE IS WORTH A THOUSAND WORDS; PUT ALL ONE'S EGGS IN ONE BASKET; QUICK ONE; SEEN ONE, SEEN THEM ALL; SIX OF ONE, HALF DOZEN OF THE OTHER; THAT'S ONE ON ME; TIE ONE ON; WEAR ANOTHER (MORE THAN ONE) HAT; WITH ONE ARM TIED BEHIND ONE'S BACK; WITH ONE VOICE; WORDS OF ONE SYLLABLE. (Note that this listing does not include those idioms where ONE is a personal pronoun meaning "someone" or "oneself.")
American Heritage Idioms