4-letter words starting with a
- adah — one of the two wives of Lamech. Gen. 4:19.
- adak — an island in SW Alaska, in the Andreanof group of the Aleutian Islands.
- adam — the first man, created by God: the progenitor of the human race (Genesis 2–3)
- adar — (in the Jewish calendar) the twelfth month of the year according to biblical reckoning and the sixth month of the civil year, usually falling within February and March. In a leap year, an additional month Adar Rishon (first Adar) is intercalated between Shevat and Adar, and the latter is known as Adar Sheni (second Adar)
- adat — the native law traditional in Indonesia.
- adaw — to subdue
- addd — (tool) A Depository of Development Documents. A public domain Software Engineering Environment from GMD developed as part of the STONE project.
- adde — Obsolete spelling of add.
- adds — Plural form of add.
- addy — an e-mail address
- aden — the main port and commercial capital of Yemen, on the N coast of the Gulf of Aden, an arm of the Indian Ocean at the entrance to the Red Sea: capital of South Yemen until 1990: formerly an important port of call on shipping routes to the East. Pop: 584 000 (2005 est)
- ades — (language) An early system on the IBM 704. Version: ADES II.
- adfa — Australian Defence Force Academy
- adhd — ADHD is an abbreviation for attention deficit hyperactivity disorder.
- adie — Kathryn, known as Kate. born 1945, British television journalist, noted esp for her frontline reporting of revolutions, wars, etc
- adin — advantage (def 5).
- adit — an almost horizontal shaft into a mine, for access or drainage
- adj. — Adj. is a written abbreviation for adjective.
- adjt — adjutant
- adm. — Admiral
- admd — Administration Management Domain
- adoe — Obsolete spelling of ado.
- ados — Plural form of ado.
- adry — dry
- adsl — ADSL is a method of transmitting digital information at high speed over telephone lines. ADSL is an abbreviation for 'asynchronous digital subscriber line'.
- adsp — AppleTalk Data Stream Protocol
- adv. — Adv. is a written abbreviation for adverb.
- advt — advertisement
- adwa — town in N Ethiopia: site of Menelik II's defeat of the Italians (1896), which led to recognition of Ethiopian independence: pop. 17,000
- adze — a heavy hand tool with a steel cutting blade attached at right angles to a wooden handle, used for dressing timber
- aecl — Atomic Energy of Canada Limited
- aeeu — (formerly in Britain) Amalgamated Engineering and Electrical Union
- aeon — An aeon is an extremely long period of time.
- aer- — aero-
- aero — of or relating to aircraft or aeronautics
- aery — lofty, insubstantial, or visionary
- aesc — an Old English runic letter, comprising the letters 'A' and 'E'
- aet. — aetatis
- afac — (language) An early system on the IBM 704.
- afam — Ancient Free and Accepted Masons
- afar — Afar means a long way away.
- afdc — Aid to Families with Dependent Children
- affs — Plural form of aff.
- affy — to have confidence, trust or faith in
- afib — (medicine) jargon for atrial fibrillation.
- afis — Automated Fingerprint Identification System: a computer system that scans fingerprints from crime scenes and compares them with millions of others around the world
- afro — Afro hair is very tightly curled and sticks out all around your head.
- aftn — Aeronautical Fixed Telecommunications Network: a worldwide system of radio and cable links for transmitting and recording messages
- afuu — Association Française des Utilisateurs d'Unix
- agag — an Amalekite king who was captured and spared by Saul but later killed by Samuel. I Sam. 15.