9-letter words starting with ar
- arillated — (of seeds) having an aril
- arimathea — a town in ancient Palestine: location unknown
- aristaeus — a son of Apollo and Cyrene: protector of herds and fields
- aristarch — a severe critic.
- aristides — known as Aristides the Just. ?530–?468 bc, Athenian general and statesman, who played a prominent part in the Greek victories over the Persians at Marathon (490), Salamis (480), and Plataea (479)
- aristotle — a bottle
- ark shell — any marine bivalve of the family Arcidae, especially of the genus Arca, characterized by a heavy shell with a toothed hinge and a deep, boatlike inner surface.
- arkwright — Sir Richard. 1732–92, English cotton manufacturer: inventor of the spinning frame (1769) which produced cotton thread strong enough to be used as a warp
- arlington — a county of N Virginia: site of Arlington National Cemetery
- arm-twist — to subject to arm-twisting: The unions arm-twisted the government into negotiating by threatening widespread strikes.
- armadillo — An armadillo is a small animal whose body is covered with large bony scales and which rolls itself into a ball when it is attacked. Armadillos are mainly found in South and Central America.
- armaments — Armaments are weapons and military equipment belonging to an army or country.
- armatures — Plural form of armature.
- armchairs — Plural form of armchair.
- armillary — of or relating to bracelets
- armistice — An armistice is an agreement between countries who are at war with one another to stop fighting and to discuss ways of making peace.
- armorican — a native or inhabitant of Armorica
- armorless — any covering worn as a defense against weapons.
- armourers — Plural form of armourer.
- armouries — a drill hall used for training and as headquarters by a reserve unit of the armed forces
- arms race — An arms race is a situation in which two countries or groups of countries are continually trying to get more and better weapons than each other.
- armstrong — Edwin Howard. 1890–1954, US electrical engineer; invented the superheterodyne radio receiver and the FM radio
- army base — a centre from which military activities are coordinated
- army brat — a daughter or son of a career U.S. Army officer or enlisted person, esp. one raised in military communities
- army list — an official list of all serving commissioned officers of the army and reserve officers liable for recall
- army worm — any of the larvae of certain noctuid moths, esp. of the moth (Pseudaletia unipuncta) of which the caterpillar is dark-striped green and yellow: these larvae travel in large groups, ruining crops and grass
- armyworms — Plural form of armyworm.
- arnoldson — Klas Pontus [klahs pawn-tuh s] /klɑs ˈpɔn təs/ (Show IPA), 1844–1916, Swedish author and politician: Nobel Peace Prize 1908.
- aromantic — Not given to experiencing romantic attraction to others.
- aromatase — an enzyme that converts testosterone into an oestrogen
- aromatics — Plural form of aromatic.
- aromatise — Alternative spelling of aromatize.
- aromatize — to make aromatic
- aroostook — river in N Me., flowing into the St. John River in New Brunswick, Canada: c. 140 mi (225 km)
- arousable — able to be aroused
- arpeggios — Plural form of arpeggio.
- arpillera — a Peruvian hand-sewn wall-hanging, typically of exquisite detail
- arquebuse — A sort of trigger-based handgun or firearm, by which a burning match was applied, from which the musket was derived.
- arracacha — a South American plant, Arracacia xanthorrhiza, the root of which is edible and is a popular food in South America
- arraigned — to call or bring before a court to answer to an indictment.
- arraigner — Lb legal One who arraigns.
- arrangers — Plural form of arranger.
- arranging — Present participle of arrange.
- arrantest — Superlative form of arrant.
- arrayment — the act of arraying
- arrearage — something outstanding or owed
- arrestant — a substance that stops a chemical reaction
- arresters — Plural form of arrester.
- arresting — attracting attention; striking
- arrestive — tending to arrest