4-letter words containing a
- acis — a Sicilian shepherd and the lover of the nymph Galatea. In jealousy, Polyphemus crushed him with a huge rock, and his blood was turned by Galatea into a river
- acks — Plural form of ack.
- acle — the hard, durable wood of a Philippine leguminous tree, Albizzia acle, used for making fine furniture.
- aclu — American Civil Liberties Union
- acme — The acme of something is its highest point of achievement or excellence.
- acne — If someone has acne, they have a skin condition which causes a lot of spots on their face and neck.
- acol — a popular British bidding system favouring light opening bids and a flexible approach
- acom — (language) An early system on the IBM 705.
- acos — (language) A BBS language for PRODOS 8 on Apple II. Macos is a hacked version of ACOS.
- acpi — Advanced Configuration and Power Interface
- acpo — Association of Chief Police Officers
- acre — An acre is an area of land measuring 4840 square yards or 4047 square metres.
- acro — Of or pertaining to something that combines acrobatic elements with that of something else.
- acse — Association Control Service Element
- acsu — Addison Central Supervisory Union
- acsw — Academy of Certified Social Workers
- act1 — (language) An actor language descended from Plasma.
- act2 — (language) An actor language.
- act3 — (language) A high-level actor language by Carl Hewitt. A descendant of Act2 which provides support for automatic generation of customers and for delegation and inheritance.
- acta — an official record of public events
- actg — acting
- acth — adrenocorticotrophic hormone; a polypeptide hormone, secreted by the anterior lobe of the pituitary gland, that stimulates growth of the adrenal gland and the synthesis and secretion of corticosteroids. It is used in treating rheumatoid arthritis, allergic and skin diseases, and many other disorders
- acti — Plural form of actus.
- acto — a short, realistic play, usually in Spanish, that dramatizes the social and economic problems of Chicanos.
- acts — a book of the New Testament, ascribed to Luke
- actt — Association of Cinematograph and Television Technicians
- actu — Australian Council of Trade Unions
- acus — Surgery. a needle, especially one used in a surgical operation.
- acyl — of, denoting, or containing the monovalent group of atoms RCO-, where R is an organic group
- adad — a coded card or other device that when inserted into a telephone allows the user to reach a number without dialing.
- 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