8-letter words containing s, a
- arborous — relating to, or formed by, trees
- arbuscle — a small tree, or a plant halfway between a shrub and a tree
- arc sine — the angle, measured in radians, that has a sine equal to a given number. Symbol: sin −1. Abbreviation: arc sin, arcsin;
- arcanist — a person with secret knowledge of a manufacturing technique
- arcesius — a son of Zeus and Euryodia, father of Laertes, and grandfather of Odysseus.
- archaise — Standard spelling of from=non-Oxford.
- archaism — the adoption or imitation of something archaic, such as a word or an artistic or literary style
- archaist — something archaic, as a word or expression.
- archives — Usually, archives. documents or records relating to the activities, business dealings, etc., of a person, family, corporation, association, community, or nation.
- archness — the quality of being arch, or saucily mischievous
- archways — Plural form of archway.
- archwise — like an arch
- arctiids — Plural form of arctiid.
- arcturus — the brightest star in the constellation Boötes: a red giant. Visual magnitude: –0.4; spectral type: K2III; distance: 37 light years
- ardennes — a department of NE France, in Champagne-Ardenne region. Capital: Mézières. Pop: 288 806 (2003 est). Area: 5253 sq km (2049 sq miles)
- areaways — Plural form of areaway.
- arethusa — a North American orchid, Arethusa bulbosa, having one long narrow leaf and one rose-purple flower fringed with yellow
- arginase — an enzyme which hydrolyses arginine into ornithine and urea
- argosies — Plural form of argosy.
- arguedas — Alcides [ahl-see-th es] /ɑlˈsi ðɛs/ (Show IPA), 1879–1946, Bolivian author, sociologist, and statesman.
- argufies — Third-person singular simple present indicative form of argufy.
- arguidos — Plural form of arguido.
- arianism — the doctrine of Arius, pronounced heretical at the Council of Nicaea, which asserted that Christ was not of one substance with the Father, but a creature raised by the Father to the dignity of Son of God
- aridisol — a soil type common to the world's deserts, poor in organic matter and rich in salts.
- aridness — The state or quality of being arid.
- ariettas — Plural form of arietta.
- ariettes — a short aria.
- arisings — Waste products or byproducts of an industrial process.
- aristate — Botany. having aristae; awned.
- aristide — Jean-Bertrand, born 1953, Haitian priest and political leader: first democratically elected president, 1991, 1994–96, 2001–04.
- arkansan — a native or inhabitant of Arkansas
- arkansas — a state of the southern US: mountainous in the north and west, with the alluvial plain of the Mississippi in the east; has the only diamond mine in the US; the chief US producer of bauxite. Capital: Little Rock. Pop: 2 725 714 (2003 est). Area: 134 537 sq km (51 945 sq miles)
- armbands — Plural form of armband.
- armholes — Plural form of armhole.
- arminius — ?17 bc–?21 ad, Germanic chieftain: organized a revolt against the Romans in 9 ad
- armlocks — Plural form of armlock.
- armoires — Plural form of armoire.
- armorers — Plural form of armorer.
- armories — (US) Plural form of armory.
- armorist — a heraldry expert
- armrests — Plural form of armrest.
- arms-eye — the armhole opening in a garment.
- arnsberg — a city in North Rhine–Westphalia, W Germany.
- arousing — causing sexual excitement
- arquebus — a portable long-barrelled gun dating from the 15th century: fired by a wheel-lock or matchlock
- arraigns — Third-person singular simple present indicative form of arraign.
- arranges — Third-person singular simple present indicative form of arrange.
- arrasene — a material of wool and silk that is used in embroidery
- arrastra — A device formerly used by gold-miners for grinding auriferous quartz, crudely resembling a mortar and pestle, with the crushing element dragged around by horse or mule.
- arrested — to seize (a person) by legal authority or warrant; take into custody: The police arrested the burglar.