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English Words Starting With A

8,734 entries — pick a word to see its definition, pronunciation, and usage.

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Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

air cavalry
nounLow
/eə ˈkævəlri/military units that use helicopters to transport troops and provide combat support.
air cavalryman
nounLow
/ˈeə ˈkævəlrɪmən/A soldier who serves in a military unit that uses helicopters for transport, reconnaissance, and air assault, as a key part of its combat role.
air cell
nounC2/Technical
/ˈeə ˌsel/A small cavity or compartment containing air.
air chamber
nounC1
/ˈeə ˌtʃeɪmbə/A sealed or enclosed space filled with air, designed to perform a specific mechanical, structural, or acoustic function.
air chief marshal
nounVery Low (specialized military jargon)
/ˌeə tʃiːf ˈmɑː.ʃəl/A senior commissioned air force rank, specifically the highest active rank in the Royal Air Force and some other Commonwealth air forces, equivalent to a full general in the army or an admiral in the navy.
air cleaner
nounIntermediate (B1)
/ˈeə ˌkliː.nər/A device, appliance, or system that filters and cleans the air in a room or building by removing pollutants, allergens, dust, smoke, or odours.
air cock
nounLow
/ˈeə ˌkɒk/A valve on a pipe or tank used to release trapped air from a system containing liquid.
air command
nounLow (Specialized)
/eə kəˈmɑːnd/A military organizational unit responsible for the operational control and strategic direction of air forces.
air commodore
nounC1/C2
/ˌeə ˈkɒm.ə.dɔːr/A senior officer rank in the air force, typically equivalent to a brigadier or brigadier general in the army.
air conditioner
nounB1 (Intermediate)
/ˈeə kənˌdɪʃ.ən.ər/A device that cools and dehumidifies air in a room or building.
air conditioning
nounHigh
/ˈeə kənˌdɪʃ.ən.ɪŋ/A system that cools and dehumidifies the air inside a building or vehicle.
air conduction
nounLow
/ˈeə kənˌdʌk.ʃən/The transmission of sound waves through the air to the eardrum.
air corps
nounMedium-Low
/ˈeə ˌkɔː/A large military aviation unit, typically part of a nation's army.
air corridor
nounC1/C2
/ˈeə ˌkɒr.ɪ.dɔːr/A designated route in the sky through which aircraft are allowed to fly, often established over a specific region or between two points.
air cover
nounC2
/ˈeə ˌkʌv.ər/Protection provided for military ground forces by the presence and potential action of friendly aircraft.
air curtain
nounlow
/ˈeə ˌkɜː.tən/A device that creates a stream of air across an opening to separate environments, preventing the transfer of air, dust, or insects.
air cushion
nounC1/C2 (low-frequency technical/engineering term; the everyday object sense is more common but still specialized).
/ˈeə ˌkʊʃ.ən/A container or device filled with air that provides soft, cushioned support to reduce pressure or absorb shock.
air cylinder
nounC2
/ˈeə ˌsɪl.ɪn.də/A mechanical device that uses compressed air to create linear force and motion.
air dam
nounC1
/ˈeə dæm/A device, typically a spoiler or panel fitted to the front of a vehicle, designed to reduce aerodynamic drag and improve stability by managing airflow.
air division
nounC1/C2
/ˈeə dɪˌvɪʒn/A major unit of a military air force, typically comprising multiple squadrons of aircraft and their support personnel, operating as a strategic or tactical formation.

Showing 2361–2380 of 8734 words.