alas

(noun) a flat wing-shaped process or winglike part of an organism. Synonyms: ala. Examples: "The alae of the nose." "The alae of a maple seed." "The flat petals of a pea blossom are alae."

(noun) a wing of an insect. Synonyms: ala.

(adv) by bad luck. Synonyms: unfortunately, unluckily, regrettably. Examples: "Unfortunately it rained all day." "Alas, i cannot stay."