9-letter words containing a, c, o, s
- al fresco — out-of-doors; in the open air: to dine alfresco.
- alcathous — a son of Pelops and Hippodamia who married Euachme and became king of Megara.
- alcyoneus — a giant who threw a stone at Hercules and was killed when Hercules hit the stone back with his club.
- allcomers — all people who want to compete, join or take part, esp in a sporting event, as opposed to members of a specific group
- allocates — Third-person singular simple present indicative form of allocate.
- ambrosiac — Having the qualities of ambrosia; delicious.
- ambuscado — an ambush
- amoristic — relating to, or characteristic of, romantic love
- amplicons — Plural form of amplicon.
- anacondas — Plural form of anaconda.
- anacostia — a section of the District of Columbia, in the SE part.
- ancestors — Plural form of ancestor.
- anchoress — a female anchorite
- anchovies — Plural form of anchovy.
- anchylose — ankylose
- androcles — (in Roman legend) a slave whose life was spared in the arena by a lion from whose paw he had once extracted a thorn
- androsace — any plant of the genus Androsace, of the primrose family, having basal leaves and white or reddish flowers.
- anecdotes — a short account of a particular incident or event, especially of an interesting or amusing nature.
- aniconism — the belief in not using or worshipping images of deities
- aniconist — a believer or follower of aniconism
- announces — Third-person singular simple present indicative form of announce.
- anorchism — Anorchia.
- anorexics — Plural form of anorexic.
- anticosti — an island of E Canada, in the Gulf of St Lawrence; part of Quebec. Area: 7881 sq km (3043 sq miles)
- antiochus — name of thirteen kings of the Seleucid dynasty of Syria
- antishock — designed to reduce the force of impact
- antonescu — Ion. 1882–1946, Romanian general and statesman; appointed prime minister (1940) by King Carol II. He was executed for war crimes
- apiaceous — of the family Apiaceae; umbelliferous
- apostolic — Apostolic means belonging or relating to a Christian religious leader, especially the Pope.
- arccosine — the function the value of which for a given argument between –1 and 1 is the angle in radians (between 0 and π), the cosine of which is that argument: the inverse of the cosine function
- archosaur — any of a group of reptiles consisting of dinosaurs, pterosaurs, modern birds, modern crocodiles and extinct relatives of crocodiles, all having a diapsid skull
- archstone — a wedge-shaped stone forming the curved part of an arch
- arcsecond — unit used in astronomy
- aromatics — Plural form of aromatic.
- ascension — In some religions, when someone goes to heaven, you can refer to their ascension to heaven.
- ascocarps — Plural form of ascocarp.
- ascogonia — Plural form of ascogonium.
- ascorbate — a salt of ascorbic acid
- ascospore — one of the spores (usually eight in number) that are produced in an ascus
- ash color — ash gray.
- associate — If you associate someone or something with another thing, the two are connected in your mind.
- assonance — the use of the same vowel sound with different consonants or the same consonant with different vowels in successive words or stressed syllables, as in a line of verse. Examples are time and light or mystery and mastery
- astichous — having a structure or layout that is not in rows
- astrocyte — any of the star-shaped cells in the tissue supporting the brain and spinal cord (neuroglia)
- astucious — Subtle; cunning; astute.
- asystolic — Pertaining to asystole.
- at source — at the point of origin
- athetosic — relating to or characterized by athetosis
- atomistic — of atoms or atomism
- atrocious — If you describe something as atrocious, you are emphasizing that its quality is very bad.