- a large earthen pitcher
- artificial joint
- artificial heart
- adipose tissue
- alligator weed
- alligator grass
- ask in
- attorn
- ack_ack gun
- acknowledge character
- anaphor
- air_drop
- aggrade
- adrenergic agent
- alpha cell
- adrenaline acid tartrate
- alpha wave
- alpestrine
- aucuba
- arrival time
- all clear
- alarum
- advantage and disadvantage
- attention deficit hyperactivity disorder
- allow out
- army of the pure
- army of the righteous
- attitudinise
- attitudinize
- a generation
- air_cool
- animal glue
- ascot
- accomplishable
- average dose
- associableness
- associate in arts
- associate professor
- associate secretary
- arithmetic mean
- a godown
- airport terminal
- air terminal
- acoustic storage
- Armerican cheddar
- American cheese
- an enclosure
- a small orchard
- adobe house
- apartment building