5-letter words containing o, a
- andro — (informal) androstenedione.
- aneto — Pico de (ˈpiˌkoʊ deɪ ) ; pēˈkō dāˌ) highest mountain in the Pyrenees, in Spain: 11,168 ft (3,404 m)
- anglo — a White inhabitant of the United States who is not of Latin extraction
- angon — a spear having a long, narrow iron shaft and a small, usually barbed tip, associated mainly with Frankish and Saxon grave finds of the 5th through 8th centuries a.d.
- angor — extreme distress or mental anguish, usually of physical origin.
- anion — a negatively charged ion; an ion that is attracted to the anode during electrolysis
- anjou — a former province of W France, in the Loire valley: a medieval countship from the 10th century, belonging to the English crown from 1154 until 1204; annexed by France in 1480
- annoy — If someone or something annoys you, it makes you fairly angry and impatient.
- anode — In electronics, an anode is the positive electrode in a cell such as a battery. Compare cathode.
- anoia — extreme mental deficiency.
- anoka — a city in E Minnesota.
- anole — any small arboreal tropical American insectivorous lizards of the genus Anolis, such as A. carolinensis (green anole): family Iguanidae (iguanas). They are able to change the colour of their skin
- anomy — a state or condition of individuals or society characterized by a breakdown or absence of social norms and values, as in the case of uprooted people.
- anova — analysis of variance
- anson — a male given name.
- anton — a male given name, form of Anthony.
- anyon — a particle that occurs in two-dimensional space having characteristics of both fermions and bosons
- anzio — a port and resort on the W coast of Italy: site of Allied landings in World War II. Pop: 36 952 (2001)
- aoede — one of the original three Muses; the Muse of song.
- aoide — one of the original three Muses; the Muse of song.
- aorta — The aorta is the main artery through which blood leaves your heart before it flows through the rest of your body.
- aosta — a town in NW Italy, capital of Valle d'Aosta region: Roman remains. Pop: 34 062 (2001)
- apiol — an aromatic compound derived from parsley seeds or oil, formerly used to treat menstrual disorders
- apoc. — Apocalypse
- apode — An animal that has no feet or footlike organs.
- apols — (UK, informal) Apologies.
- apoop — on the poop deck, astern
- aport — on or towards the port side
- appro — (of a purchase) approval: on appro.
- apron — An apron is a piece of clothing that you put on over the front of your normal clothes and tie round your waist, especially when you are cooking, in order to prevent your clothes from getting dirty.
- arbor — An arbor is a shelter in a garden which is formed by leaves and stems of plants growing close together over a light framework.
- ardor — emotional warmth; passion
- argol — crude potassium hydrogentartrate, deposited as a crust on the sides of wine vats
- argon — Argon is an inert gas which exists in very small amounts in the atmosphere. It is used in electric lights.
- argos — an ancient city in SE Greece, in the NE Peloponnese: one of the oldest Greek cities, it dominated the Peloponnese in the 7th century bc. Pop (municipality): 29 505 (2001)
- argot — An argot is a special language used by a particular group of people, which other people find difficult to understand.
- arion — flourished 7th century b.c, Greek poet: inventor of the dithyramb.
- ariot — riotously
- arlon — a town in SE Belgium, capital of Luxembourg province. Pop: 25 766 (2004 est)
- armco — a metal safety barrier erected at the side of motor-racing circuits, esp on corners
- armor — covering worn to protect the body against weapons
- aroha — love, compassion, or affectionate regard
- aroid — of, relating to, or belonging to the Araceae, a family of plants having small flowers massed on a spadix surrounded by a large petaloid spathe. The family includes arum, calla, and anthurium
- aroma — An aroma is a strong, pleasant smell.
- arose — Arose is the past tense of arise.
- arrow — An arrow is a written or printed sign that consists of a straight line with another line bent at a sharp angle at one end. This is a printed arrow: →. The arrow points in a particular direction to indicate where something is.
- arroz — Spanish word for rice, used in the names of various dishes.
- arson — Arson is the crime of deliberately setting fire to a building or vehicle.
- as of — up to, on, or from (a specified time)
- as to — with reference to