(n) (comp) active file
(n) active filter
(n) activation
(n) acting out
(n) acrylic aldehyde
(n) acryloguanamine
(n) acrobatic dance
(n) aerobatic team
(n) agricultural
(n) agribusinessman
(adv) against wind
(n) accordion door
(n) Asia-Pacific War (starting with the Manchurian Incident in 1931 and ending with the Japanese surrender in 1945)
(n) Asiago cheese
(n) Asian-African Conference (1955)
Afro-Asian Conference
(n) rod of Asclepius
(n) astonishment
(n) asbestos cement
(n) aspect ratio
(n) Asperger's syndrome
(n) athlete trust
(n) athlete fund
(n) athletic club
fitness club
gym
sports club
(n) acetylsalicylic acid (i.e. aspirin)
(n) (obsc) acetylcellulose
(n) acetate rayon
(n) acetaminophen
paracetamol
(n) (comp) assembler control instruction
(n) Azerbaijani (language)
(n) (comp) adaptation layer