- a compass
- a parachute
- a stone bow pellet bow
- a land_measuring chain
- alfalfa
- a pulley
- a nail_cutter
- a sieve
- a torch
- a rod
- a fishing rod
- a dolly
- a thin long pole
- a large pole (used to propel a boat)
- a funnel
- a crocodile
- a sheave
- a spigot
- a filter
- a water_lifting appliance
- adz
- adze
- a screw_driver
- a plumbline
- a mallet
- a wooden patting device (used by masons etc.)
- an injection
- as of
- a piercer
- an awl
- a typewriter
- an implement for turning a gourd
- a drill
- an air umbrella
- a small saw
- a pendant
- a churn_staff
- a try_square
- a kind of axe or hatchet
- a compressor
- a gossip
- a prisoner
- a kind of toy
- an allegorist
- acute postoperative atelectasis
- acoustical resistance
- after cataract
- a group of one hundred
- anno domini
- anti_infective agent