etymology

up hill and down dale: Idiom Meaning and Origin

up and running: Idiom Meaning and Origin

up-and-comer: Idiom Meaning and Origin

under the sun: Idiom Meaning and Origin

under the rug: Idiom Meaning and Origin

under the carpet: Idiom Meaning and Origin

under someone’s nose: Idiom Meaning and Origin

ugly duckling: Idiom Meaning and Origin

two-way street: Idiom Meaning and Origin

two lamps burning and no ship at sea: Idiom Meaning and Origin

turn on its head: Idiom Meaning and Origin

turn loose: Idiom Meaning and Origin