aid |eɪd| — a person or thing that is a resource that helps make something easier or possible to do

aide |eɪd| — an officer who acts as military assistant to a more senior officer

aide-de-camp |ˌeɪd də ˈkæmp| — an officer who acts as military assistant to a more senior officer

aide-memoire |ˌeɪd memˈwɑːr| — a memorandum summarizing the items of an agreement (used especially in diplomatic communications)

aides-de-camp |ˌeɪdzdəˈkɑːmp| — plural form of aide-de-camp

aidless  — Without aid.

aids |ˈeɪdz| — a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles

aiglet |ˈeɪɡlɪt| — metal or plastic sheath over the end of a shoelace or ribbon

aigrette |ˈeɪɡret| — a long plume (especially one of egret feathers) worn on a hat or a piece of jewelry in the shape of a plume

aiguille |eɪˈɡwiːl| — A needle-shaped peak.

aiguillette |ˌeɪɡwɪˈlet| — Alternative spelling of aiglet. (A metal tip, on a ribbon or cord that facilitated lacing two parts of a garment together.)

ail |eɪl| — aromatic bulb used as seasoning

aileron |ˈeɪlərɑːn| — an airfoil that controls lateral motion

ailing |ˈeɪlɪŋ| — somewhat ill or prone to illness

ailment |ˈeɪlmənt| — an often persistent bodily disorder or disease; a cause for complaining

aim |eɪm| — an anticipated outcome that is intended or that guides your planned actions

aimed |ˈeɪmd| — simple past tense and past participle of aim

aimer  — One who aims; one who is responsible for aiming.

aiming |ˈeɪmɪŋ| — Present participle of aim.

aimless |ˈeɪmləs| — aimlessly drifting

aimlessness |ˈeɪmləsnəs| — the quality of lacking any definite purpose

air |er| — a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of

air-base |ˈeəbeɪs| — An airbase.

air-bed |ˈeəbed| — A bed that is inflated with air and used as a permanent or temporary bed. They are adjustable, and sometimes portable.

air-bladder |ˈeə blædər| — An internal organ that fish use to control their buoyancy, allowing them to maintain or change depth by changing their density.

air-brake |ˈeəbreɪk| — Alternative spelling of airbrake.

air-brick |ˈeəbrɪk| — (architecture) A brick size block with holes which is embedded in a wall to allow ventilation through it.

air-brush |ˈeəbrʌʃ| — Alternative spelling of airbrush.

air-cell |ˈeəsel| — (biology) an air pocket at the bottom end of an egg formed from contraption of the egg's contents through loss of moisture and cooling from its initial filled state.

air-chamber |eə ˈtʃeɪmbə| — a chamber, in a hydraulic system, in which air (some other gas) is compressed to regulate the flow of a fluid

air-condition |ˈeəkənˌdɪʃən| — control the humidity and temperature of

air-conditioned |ˈeəkənˌdɪʃənd| — cooled by air conditioning

air-conditioner  — an appliance designed to extract humidity from the air and thereby cool it

air-conditioning |ˈeəkənˌdɪʃənɪŋ| — Alternative spelling of air-conditioning.

air-cooled |ˈeə kuːld| — cooled by a flow of air

air-cushion |ˈkʊʃən| — a layer of trapped air that supports a hovercraft

air-hole |ˈeəhəʊl| — a hole in any surface that allows air or other gases to pass, especially an opening in the surface of a frozen lake etc

air-hostess |ˈeəˌhəʊstɪs| — A female flight attendant.

air-jacket |ˈeəˌdʒækɪt| — A jacket with airtight cells, or cavities which can be filled with air, to make the wearer buoyant when swimming.

air-pocket |ˈeəˌpɒkɪt| — a local region of low atmospheric pressure, or a local downward current; especially one that causes an aircraft to lose height suddenly

air-proof |ˈeəpruːf| — airtight

air-raid |ˈeə reɪd| — An attack on a ground target by military aircraft, especially when dropping bombs.

air-shaft |ˈeə ʃæft| — a vertical (near vertical) shaft that supplies ventilation to a tunnel or other underground facility

air-tight |ˈeətaɪt| — having no weak points

air-to-air |ˈe(ə)r də ˈˌe(ə)r| — operating between or launched from or involving rockets or aircraft in flight

air-to-ground |ˌeə tʊ ˈɡraʊnd| — operating from or designed to be fired from aircraft at targets on the ground

airbase |ˈerbeɪs| — A military airport, providing housing and support for aircraft and personnel.

airbed |ˈerbed| — Alternative spelling of air bed.

airborne |ˈerbɔːrn| — moved or conveyed by or through air

airbrick |ˈeəbrɪk| — Alternative spelling of air brick.

airbrush |ˈerbrʌʃ| — an atomizer to spray paint by means of compressed air

aircraft |ˈerkræft| — a vehicle that can fly

aircraftman |ˈerkræftmən| — a noncommissioned officer in the British Royal Air Force

aircraftsman |ˈerˌkræftsmʌn| — a noncommissioned officer in the British Royal Air Force

airdrome |ˈerdrəʊm| — an airfield equipped with control tower and hangars as well as accommodations for passengers and cargo

Airedale |ˈerˌdel| — breed of large wiry-coated terrier bred in Yorkshire

airfield |ˈerfiːld| — a place where planes take off and land

airflow |ˈerfləʊ| — the flow of air

airfoil |ˈerfɔɪl| — a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight

airframe |ˈerˌfrem| — the framework and covering of an airplane or rocket (excluding the engines)

airhead |ˈerhed| — a flighty scatterbrained simpleton

airhole  — A hole provided for ventilation or breathing

airily |ˈerəlɪ| — in a flippant manner

airiness |ˈeərɪnəs| — the property of something spacious and abounding in fresh air

airing |ˈerɪŋ| — the opening of a subject to widespread discussion and debate

airlane  — Alternative spelling of air lane.

airless |ˈerləs| — lacking fresh air

airlift |ˈerlɪft| — transportation of people or goods by air (especially when other means of access are unavailable)

airline |ˈerlaɪn| — a hose that carries air under pressure

airliner |ˈerlaɪnər| — a commercial airplane that carries passengers

airlock |ˈerlɑːk| — a chamber that provides access to space where air is under pressure

airman |ˈermən| — someone who operates an aircraft

airmanship |ˈeəmənʃɪp| — the art of operating aircraft

airplane |ˈerpleɪn| — an aircraft that has a fixed wing and is powered by propellers or jets

airport |ˈerpɔːrt| — an airfield equipped with control tower and hangars as well as accommodations for passengers and cargo

airproof  — airtight

airs |ˈerz| — affected manners intended to impress others

airscrew |ˈeəskruː| — a propeller that rotates to push against air

airshaft  — (architecture) A vertical opening running from a courtyard to the sky, thus allowing air to circulate to high-rise apartments or offices

airshed |ˈeəʃed| — Alternative spelling of air shed.

airship |ˈerʃɪp| — a steerable self-propelled aircraft

airsick |ˈersɪk| — experiencing motion sickness

airsickness |ˈeəsɪknəs| — motion sickness experienced while traveling by air (especially during turbulence)

airspace |ˈerspeɪs| — the space in the atmosphere immediately above the earth

airstream |ˈerstriːm| — a relatively well-defined prevailing wind

airstrip |ˈerstrɪp| — an airfield without normal airport facilities

airtight |ˈertaɪt| — having no weak points

airwaves |ˈerweɪvz| — Radio-frequency electromagnetic waves, usually used in the context of wireless communication.

airway |ˈerweɪ| — a duct that provides ventilation (as in mines)

airwoman |ˈerwʊmən| — a woman aviator

airworthiness |ˈeˌrwərðɪnəs| — fitness to fly

airworthy |ˈerwɜːrðɪ| — (of aircraft) fit to fly

airy |ˈerɪ| — open to or abounding in fresh air

aisle |aɪl| — a long narrow passage (as in a cave or woods)

ait |eɪt| — An island in a river, especially the River Thames in England.

aitchbone |ˈeɪtʃˌbəʊn| — a cut of beef including the H-shaped rump bone