Contraction of a as (“to the (feminine plural)”): feminine plural of ao

sometimes (on certain occasions, but not always) / perhaps, maybe (indicates possibility or doubt)

in the dark (without light) / in the dark (without information) / under wraps (in secrecy)

(of a piece of clothing) inside out

inverted

(idiomatic) under wraps (in secrecy)

to arms! (a summons to war or battle)

with a backward motion, going backward

Used other than figuratively or idiomatically: see encontro, às cegas. / blind date (romantic meeting between two people who have never met before)

plural of encontro às cegas