9-letter words starting with a
- advertent — paying attention; heedful
- adverting — to remark or comment; refer (usually followed by to): He adverted briefly to the news of the day.
- advertise — If someone or something advertises a particular quality, they show it in their appearance or behaviour.
- advertize — to announce or praise (a product, service, etc.) in some public medium of communication in order to induce people to buy or use it: to advertise a new brand of toothpaste.
- adviceful — thoughtful or attentive
- advisable — If you tell someone that it is advisable to do something, you are suggesting that they should do it, because it is sensible or is likely to achieve the result they want.
- advisably — Wisely, in an advisable manner.
- advisedly — If you say that you are using a word or expression advisedly, you mean that you have deliberately chosen to use it, even though it may sound unusual, wrong, or offensive, because it draws attention to what you are saying.
- advocated — to speak or write in favor of; support or urge by argument; recommend publicly: He advocated higher salaries for teachers.
- advocater — Alternative form of advocator.
- advocates — Third-person singular simple present indicative form of advocate.
- advocator — a person who advocates
- advoutrer — an adulterer
- aedoeagus — aedeagus.
- aegisthus — a cousin to and the murderer of Agamemnon, whose wife Clytemnestra he had seduced. He usurped the kingship of Mycenae until Orestes, Agamemnon's son, returned home and killed him
- aegrotats — Plural form of aegrotat.
- aeolipile — a device illustrating the reactive forces of a gas jet: usually a spherical vessel mounted so as to rotate and equipped with angled exit pipes from which steam within it escapes
- aepyornis — any of the large extinct flightless birds of the genus Aepyornis, remains of which have been found in Madagascar
- aerialist — a trapeze artist or tightrope walker
- aeriality — the quality of being aerial; insubstantiality
- aerifying — Present participle of aerify.
- aerobatic — (used with a plural verb) stunts performed in flight by an airplane, glider, or the like.
- aerobiont — an organism that requires oxygen to survive
- aerobrake — to perform aerobraking
- aerodrome — An aerodrome is a place or area where small aircraft can land and take off.
- aerofoils — Plural form of aerofoil.
- aerogenic — producing gas, as certain bacteria.
- aerograms — Plural form of aerogram.
- aerograph — a device formerly used to make descriptions of the character of the upper atmosphere
- aerolites — Plural form of aerolite.
- aeromancy — the interpretation of the weather and atmospheric conditions to foretell the future
- aerometer — an instrument for determining the mass or density of a gas, esp air
- aerometry — an instrument for determining the weight, density, etc., of air or other gases.
- aeromotor — an engine that powers an aircraft
- aeronauts — A traveler in a hot-air balloon, airship, or other flying craft.
- aeronomer — a scientist who studies the upper atmosphere of planets
- aeronomic — of or relating to the study of the upper atmosphere
- aeropause — the region of the upper atmosphere above which aircraft cannot fly
- aerophile — (biology) Any air-breathing organism.
- aerophobe — a person who suffers from aerophobia
- aerophone — any musical instrument in which sound is produced by air vibrations
- aerophore — a device which supplies oxygen in order to aid breathing
- aerophoto — aerial photograph.
- aerophyte — epiphyte.
- aeroplane — An aeroplane is a vehicle with wings and one or more engines that enable it to fly through the air.
- aeropulse — a pulsejet engine
- aeroscope — a device that collects bacteria from the air, used for observing the atmosphere
- aeroshell — a protective shield, containing a parachute, which slows a spacecraft during re-entry to the earth's atmosphere and landing
- aerospace — Aerospace companies are involved in developing and making rockets, missiles, space vehicles, and related equipment.
- aerospike — a type of rocket engine