4-letter words containing c, a
- acyl — of, denoting, or containing the monovalent group of atoms RCO-, where R is an organic group
- aecl — Atomic Energy of Canada Limited
- aesc — an Old English runic letter, comprising the letters 'A' and 'E'
- afac — (language) An early system on the IBM 704.
- afdc — Aid to Families with Dependent Children
- agcy — agency
- aicc — All India Congress Committee: the national assembly of the Indian National Congress
- akcl — Austin Kyoto Common Lisp
- alc. — alcohol
- alcm — air-launched cruise missile: a type of cruise missile that can be launched from an aircraft
- alco — A small South American dog, domesticated by the natives.
- alec — A Language with an Extensible Compiler
- amic — of or relating to an amide or amine.
- ance — (chiefly, Scotland) alternative spelling of once.
- ancp — (language) An early system on the Datatron 200 series.
- aocb — any other competent business
- aoce — Apple Open Collaboration Environment
- apec — Asia-Pacific Economic Cooperation
- apic — Advanced Programmable Interrupt Controller
- appc — Advanced Program-to-Program Communications
- arca — a chest for valuables, used in medieval Spain and Italy.
- arce — a daughter of Thaumas and the sister of Iris and the Harpies. Zeus took away her wings when she aided the Titans in their war against him.
- arch — An arch is a structure that is curved at the top and is supported on either side by a pillar, post, or wall.
- arcm — Associate of the Royal College of Music
- arco — a musical direction for instruments of the violin family indicating that the bow should be used (as opposed to plucking)
- arcs — Associate of the Royal College of Science
- asce — American Society of Civil Engineers
- asch — Sholem (ˈʃəʊləm). 1880–1957, US writer, born in Poland, who wrote in Yiddish. His works include biblical novels
- asci — ascus
- ascs — Agricultural Stabilization and Conservation Service
- ascu — Association of State Colleges and Universities
- asic — Application-Specific Integrated Circuit
- atoc — a variety of skunk
- bace — (rare) A blow; a drubbing.
- bach — a term of friendly address: used esp after a person's name
- back — If you move back, you move in the opposite direction to the one in which you are facing or in which you were moving before.
- bacs — Bankers' Automated Clearing System; a method of making payments direct to a creditor's bank without using a cheque
- bact — bacteriology
- banc — the seat on which judges sit in court.
- bcar — British Civil Airworthiness Requirements
- boac — British Overseas Airways Corporation
- brca — either of two genes (BRCA1 or BRCA2) that, if inherited in a mutated form, may predispose some carriers to develop breast or ovarian cancer.
- caba — (dated) A cabas, or lady's bag.
- cabe — Commission for Architecture and the Built Environment
- cabs — Plural form of cab.
- cac- — caco-
- caca — heroin
- caci — (company) A company developing and marketing SIMSCRIPT, MODSIM and other simulation software products. Telephone: +1 (619) 457-9681.
- cack — nonsense
- cacm — Communications of the ACM