single

on the way: Idiom Meaning and Origin

on the table: Idiom Meaning and Origin

on the one hand: Idiom Meaning and Origin

on the line: Idiom Meaning and Origin

on the face of it: Idiom Meaning and Origin

on the double: Idiom Meaning and Origin

on the bounce: Idiom Meaning and Origin

on one’s last legs: Idiom Meaning and Origin

only game in town: Idiom Meaning and Origin

one-trick pony: Idiom Meaning and Origin

one side: Idiom Meaning and Origin

onesey-twosey: Idiom Meaning and Origin