- aisle
- alabaster gypsum
- alarm apparatus
- alarm zone
- alburnum
- alcove
- aldehyde resin
- airduct
- airfield
- airfield concrete
- airing
- airport
- airport building
- airport pavement
- airport territory
- airspace
- airtightness
- airway
- airy
- aisle wall
- alarm
- albite
- album
- algae control
- algorithm performance
- algorithmization
- align property
- alignment box
- alignment marker
- alignment plan
- alignment stake
- alkali-granite
- alkaline activation
- alkaline excitation
- Alkyd resin
- all-cast
- allayer
- allen heat
- allen wrench
- alliance
- alligator
- Allocative efficiency
- allotment
- agony
- agora
- agreement
- agricultural construction
- agricultural engineering
- agricultural settlement
- agricultural silo
- agricultural zone
- agrometer
- aim
- air absorption
- air basin
- air brush
- air channel
- air circulation
- air cleaner
- air collector
- air conditioning
- air cooler
- air cooling
- air door
- air drill
- air drying
- air entraining
- air face
- air float
- air friction
- air hoist
- air humidification
- air infiltration
- air moistening
- air raise
- air requirement
- air shower
- air sound
- air strip
- air tamper
- air washer
- air winch
- air-beed
- air-crash
- air-dried
- air-permeable
- airconditroning noise
- airdrome
- airdrome construction
- airfoil mill
- airlock
- airsetting
- airtight body
- airview
- alabaster
- alarm float
- alarm panel
- alarm station
- albite alit
- albumin glue