(informal, idiomatic) To seem at least vaguely familiar. / (informal, idiomatic) To spark a previously forgotten memory. / Used other than figuratively or idiomatically: see ring, a, bell.

Used other than figuratively or idiomatically: see have, a, nice, day. / (US, Canada, rather formal). en

(Britain, idiomatic) To attempt to get more out of something that cannot give more; to attempt to arouse fresh interest in something that is either hopeless or already settled.

(idiomatic) Having nothing to say; stunned to the point of speechlessness.

(simile) Very nervous.

Ace. (including in card games) / Acre. / Adult; as used in film rating. / Ammeter. / (physics) Angstrom. / Answer. / (sports) An assist. / (sexuality) Asexual. / (UK, London) Arsehole. / (weaponry) Atom.

(weaponry) Atom; atomic.

(idiomatic, informal) A level of effort beyond what one can usually sustain; great exertion.

(Australia, simile, informal) Very dry, extremely dry. / (Australia, simile, informal) Very thirsty.

In the style or manner of.