- A/F
- A-frame
- A-frame house
- a jour
- A-labeled door
- abaciscus
- abacus
- abamurus
- abat-jour
- abat-sons
- abat-vent
- abat-voix
- abate
- abated
- abatement
- abaton
- abbey
- Ablution Fitting
- Abney Level
- Above Grade
- above-grade building volume
- Above Ground Level
- Abrams’ law
- abrasion
- abrasion resistance
- abrasive
- abut
- abutment
- abuttals
- abutting joint
- abutting tenon
- acceleration
- acceptable air quality
- access
- access door
- access panel
- access plate
- access stair
- Accessories
- acid polishing
- acid resistance
- acid-resistant brick
- acidic
- acorn
- acoustic
- acoustical barrier
- acoustical board
- acoustical door
- acoustical insulation board
- acoustical material
- acoustical plaster
- acre
- acre-foot
- acrolith
- acropodium
- acroterion
- acrylic carpet
- acrylic fiber
- acrylic paint
- acrylic resin
- acrylonitrile-butadiene-styrene (ABS)
- actinic glass
- activated alumina
- activated carbon
- activated rosin flux
- activated sludge
- active earth pressure
- active lateral pressure
- acuminated
- acute angle
- acute arch
- adapt
- adaptability
- adaptable dwelling unit
- adapter
- addendum
- addition
- additional services
- additive
- additive alternate
- addressable system
- adherend
- adhesion
- adhesion bond
- adhesion-type ceramic veneer
- adhesion-type filter
- adhesive
- adiabatic
- adiabatic curing
- adit
- adjoining grade elevation
- adjustable base anchor
- adjustable doorframe
- adjustable hanger
- adjustable proscenium
- adjustable shelving
- adjustable shore
- adjustable-speed motor
- adjustable square
- adjustable wrench
- administrative authority
- admixture
- adobe
- adobe blasting
- adobe brick
- adobe quemado
- adobero
- adsorbed water
- adsorbent
- adsorption
- adulterine
- advance slope grouting
- advance slope method
- advanced nursery stock
- adverse possession
- advertisement curtain
- advertisement for bids
- adyton
- adytum
- adz
- adze
- aedes
- aedicula
- aegicranes
- aerarium
- aerate
- aerated concrete
- aerated plastic
- aeration
- aerator fitting
- aerial cable
- aerial photograph
- aerial photomap
- aerial photomosaic
- aerodynamic noise
- aerofilter
- aerograph
- aerophoto
- aerophoto
- aerosol paints
- aes
- aetoma
- aetos
- affronted
- after cooler
- after-flush
- afterfilter
- afterflaming
- afterglow
- aftertack
- agalma
- agba
- age hardening
- age softening
- ageing
- agency
- agent
- agger
- agglomerate stone
- agglomeration
- aggradation
- aggregate
- aggregate bin
- aggregate blending
- aggregate interlock
- aggregate strength
- agiasterium
- aging
- agitating lorry
- agitating speed
- agitating truck
- agitation
- agitator
- agitator body
- AGL
- agnus dei
- agora
- agrafe
- agraffe
- agreement
- agreement form
- agricultural drain
- agricultural lime
- agricultural pipe drain
- aguilla
- AHU
- aiguille
- aileron
- aiming angle
- air balancing
- air barrier
- air-blown mortar
- air blowpipe
- air-bound
- air break
- air brick
- air chamber
- air changes
- air circulation
- air cleaner
- air cock
- air compressor
- air conditioner
- air conditioning
- air-conditioning duct
- air-conditioning grille
- air-conditioning lock
- air-conditioning system
- air-conditioning unit
- air content
- air control valve
- air-cooled blast-furnace slag
- air-cure
- air curtain
- air cushion tank
- air damper
- air diffuser
- air-distributing acoustical ceiling
- air door
- air drain
- air-dried lumber
- air drill
- air-dry moisture content
- air drying
- air duct
- air eliminator
- air-entrained concrete
- air entraining
- air-entraining admixture
- air-entraining agent
- air-entraining hydraulic cement
- air entrainment
- air exfiltration
- air-exhaust ventilator
- air filter
- air filtration
- air flue
- air-fuel ratio
- air gap
- air grating
- air grille
- air gun
- air hammer
- air-handling luminaire
- air-handling system
- air-handling unit
- air heating system
- air hole
- air house
- air-inflated structure
- air inlet
- air intake
- air lance
- air leakage
- air lift
- air-light troffer
- air line
- air lock
- air-lock strip
- air maintenance device
- air meter
- air-mixing plenum
- air monitoring
- air motor
- air outlet
- air permeability test
- air pipe
- air pocket
- air pump
- air purge valve
- air receiver
- air regulator
- air reheater
- air release valve
- air right
- air-ring
- air scrubber
- air-seasoned lumber
- air separator
- air-set
- air shaft
- air shutter
- air-slaked
- air slaking
- air space
- air tap
- air terminal
- air terminal unit
- air test
- air tight
- air-to-air resistance
- air valve
- air vent
- air ventilation
- air vessel
- air void
- air washer
- air-water storage tank
- air well
- airborne sound
- airbrush
- airflow vane
- airfoil vane
- airless spraying, hydraulic spraying
- airway
- aisle
- aisle access way
- aisleway
- aiwan
- ajaraca
- alabaster
- alameda
- alarm system
- alatorium
- albani stone
- albarium
- albronze
- album
- alburnum
- alcazar
- alclad
- alcove
- alder
- ale house
- aleatorium
- alette
- alfiz
- Alhambra
- Alhambresque
- alicatado
- alidade
- alienation
- aliform
- aligning punch
- alignment
- alipterion
- alite
- alkali
- alkali-aggregate reaction
- alkali reactivity
- alkali resistance
- alkaline soil
- alkyd paint
- alkyd resin
- all-heart lumber
- all-in contract
- allegory
- Allen head
- Allen wrench
- alley
- alligator hide
- alligator shears
- alligator wrench
- alligatoring
- allotment garden
- allover
- allowable bearing capacity
- allowable bearing value
- allowable load
- allowable pile bearing load
- allowable pile load
- allowable soil pressure
- allowable stress
- alloy
- alloy steel
- allure
- alluvial deposit
- alluvium
- ALM
- almariol
- almary
- almehrabh
- almemar
- almena
- almond
- almonry
- alpha brass
- alpha gypsum
- ALT
- altana
- altar
- alteration
- alternate
- alum
- alumina
- aluminium
- ambitus
- ambulatory
- amended water
- amendment
- amino plastic
- ammeter
- amphithura
- amplitude
- amusement park
- amyl acetate
- amylin
- anaglyph
- analemma
- analogion
- analogium
- anamorphosis
- anathyrosis
- anchor
- anchor beam
- anchor block
- anchor bolt
- anchor cable
- anchor dart
- anchor fastener
- anchor log
- anchor pile
- anchor plate
- anchor rod
- anchor store
- anchor tie
- anchorage
- anchorage
- anchorage bond stress
- anchorage system
- anchorage zone
- anchored-type ceramic veneer
- ancillary
- ancon
- anda
- anda
- andiron
- andron
- anechoic room
- anemometer
- angel beam
- angel light
- angiosperm
- angiportus
- angle
- angle bar
- angle bead
- angle blasting
- angle bond
- angle brace
- angle bracket
- angle brick
- angle buttress
- angle clip
- angle collar
- angle column
- angle corbel
- angle rail
- angle rib
- angle section
- angle shaft
- angle valve
- angled bay window
- anglet
- angular aggregate
- angular pediment
- anhydrite
- anhydrous calcium sulfate
- anhydrous gypsum plaster
- animal black
- animal glue
- anisotropic
- annealed glass
- annealing
- annex
- annexe
- annual plant
- annual ring
- annular
- annular crypt
- annular nail
- annulet
- anode
- anodize
- antecabinet
- antenave
- anteport
- anteroom
- anti-sing lamp or low-noise lamp
- anti-siphon
- anti-siphon trap
- anti-siphon vacuum breaker
- anti-siphonage vent
- anti-sun glass
- antic
- anticorrosive paint
- antidesiccant
- Antiflooding Interceptor
- Antifreeze Sprinkler System
- Antifriction Bearing
- Antifriction Latch Bolt
- Antimonial Lead
- Antimony Oxide
- antimony yellow
- antiparabema
- antipumping
- antique crown or eastern crown
- antique glass
- antiquing
- antiquum opus
- antis or in antis
- antislip paint
- antismudge ring
- antistatic agent
- apadana
- APC
- apex
- Apex Stone
- Apodyterium
- Aponsa
- Apophyge
- backfill
- backfill
- backfilling
- backhoe
- backing ring
- backjoint
- balanced door
- balanced load
- balanced reinforcement
- balcony
- ball-bearing hinge
- ball cock
- ball valve
- ballast
- baluster
- band
- bar bending
- barbed wire
- basalt
- base line
- basement
- batching
- bathroom
- batten
- beam
- bearing
- bearing capacity
- bearing test
- bed joint
- bedding course
- bench mark
- bench table
- bent
- bent bar
- bent glass
- bentonite
- Bermuda stone
- bevel
- bibcock
- bid
- bid bond
- bid date
- bid price
- bid security
- bidder
- bidding period
- bill of materials
- black bolt
- black japan
- BM
- bog
- bogie
- boiler plate
- bond
- borrow pit
- bottom bolt
- bottom chord
- bottom rail
- brick on edge
- bug holes
- building
- built-up string
- bulk density
- bulking factor
- bulldozer
- Burjis
- butt joint
- buttress pier
- cabinet
- cable tray
- caged column
- calcine
- camber
- canal
- candela
- canopy
- cantilever
- canton
- canvas
- capacitor
- capital
- capital cost
- capping
- carcase
- carcass,
- carrier bar
- cavalier
- cavity wall
- CCTV
- ceiling
- cement
- cement slurry
- cemented soil
- central newel
- centralized HVAC system
- ceramic
- ceramic glaze
- ceramic tile
- Coarse Aggregate
- Concrete
- dado
- dalan
- Damping
- dampproof course
- Dash-Bond Coat
- datum line
- Dead Bolt
- Deadmen
- Deduction
- deed
- deep-seal trap
- default
- deflection
- deformed reinforcement
- demolition
- density
- double square
- Eaves
- Electrical insulation
- final filter
- Finial
- Flashing
- Formation or Profile
- Gable
- growth ring
- Gutter
- Hard Lead
- Hip
- I-beam
- ICC
- Ice dam
- Igloo
- Iglu
- Igneous rock
- Ignitability
- Ignition
- Ignition source
- Ignition temperature
- Illuminance
- Illuminated sign
- Illumination
- Illumination level
- Illumination meter
- Imaret
- Imbow
- Imbrex
- Imbricate
- Imbrication
- Impeller
- Incline
- Interlocked
- Inverted arch
- Irish moss
- Iron oxide
- Isolated
- Isometric drawing
- Jacal
- Jack
- Jack plane
- Jack post
- Jack rafter
- Jacket
- Jamb
- Jog
- Joggle
- Joggle beam
- Joint tape
- Joint tenancy
- Joint venture
- Jumper
- Kalamein door
- Kaolin
- Keel molding
- Kelvin (K)
- Key course
- Khan
- Kilogram (kg)
- Knob
- Knotty pine
- lancet arch
- Lead
- Lift
- Macadam
- Macadam aggregate
- Macassar ebony
- Macellum
- Maceria
- Magnesia
- Magnesia cement
- Magnesia insulation
- Magnesite
- Magnesite flooring
- Magnesium
- Magnesium alloy
- Magnetite
- Main bar
- Man-hour
- Manhole
- Marble
- Mason
- Masonry
- Mild steel
- Monolithic
- Monolithic concrete
- Motel
- Mural
- Nab
- Nail
- Nanometer
- Natural cement
- Natural resin
- Natural sand
- Needle
- Niche
- Noise
- Nose
- Nosing
- Nugget
- Nut
- Offset
- One-line diagram
- One-way slab
- Opal
- Oratory
- Organic
- Orientation
- Ornament
- Oval
- Oversite concrete
- Oxidation
- Pitch
- Pitched Roof
- Quad
- Quadra
- Quadrangle
- Quadrant
- Quantity survey
- Quarry
- Quarter bend
- Quartz
- Quartzite
- Queen closer
- Regulus Metal
- residual tack
- Ridge
- Saddle Stone
- Sound insulation
- Tarmacadam
- Tell Tales
- Thermal insulation
- Ultimate load
- Valley
- Verge
- Waferboard
- Waterworks
- Watt
- Watt-hour
- Wattle
- X-brace
- XBAR
- Xenodocheum
- Y-branch
- Yale lock
- Yankee barn
- Yankee gutter
- Yard
- Z-bar
- Z-braced battened door
- Zebrawood
- Zee
- Zeolite
- Zeolite softening
- Zero-slump concrete
- Zeta
- Ziggurat
- Zigzag
- Zigzag bond
- Zigzag fence
- Zigzag molding
- Zigzag riveting
- Zigzag rule
- Zinc
- Zinc chromate
- Zinc dust
- Zinc oxide
- Zinco
- Zone
- Zoning ordinance
- Zoological garden
- Zoomorph
- Zoophorus
- Zwinger
