idiomatic

at bottom: Idiom Meaning and Origin

at bay: Idiom Meaning and Origin

at a pinch: Idiom Meaning and Origin

at all: Idiom Meaning and Origin

at a canter: Idiom Meaning and Origin

as often as not: Idiom Meaning and Origin

as I was saying: Idiom Meaning and Origin

as best one can: Idiom Meaning and Origin

a little from column A, a little from column B: Idiom Meaning and Origin

add up: Idiom Meaning and Origin

add oil: Idiom Meaning and Origin

according to Hoyle: Idiom Meaning and Origin