10-letter words starting with on
- one-eighty — a turn or reversal of 180 degrees.
- one-handed — having or using only one hand: The left fielder made a one-handed catch of the fly ball.
- one-legged — having only one leg.
- one-lunger — a one-cylinder internal-combustion engine.
- one-on-one — consisting of or involving direct individual competition, confrontation, or communication; person-to-person: a one-on-one discussion.
- one-reeler — a motion picture, especially a cartoon or comedy, of 10 to 12 minutes' duration and contained on one reel of film: popular especially in the era of silent films.
- one-suiter — a piece of luggage designed to hold one suit and other smaller items, as underwear or socks.
- one-tailed — (of a significance test) concerned with the hypothesis that an observed value of a sampling statistic either significantly exceeds or falls significantly below a given value, where the error is relevant only in one direction: for instance, in testing whether scales are fair a customer does not regard overweight goods as a relevant error
- one-to-one — Also, one-one. (of the relationship between two or more groups of things) corresponding element by element.
- one-upping — to get the better of; succeed in being a point, move, step, etc., ahead of (someone): They one-upped the competition.
- oneirology — The study that relates with dreams.
- oniomaniac — an uncontrollable desire to buy things.
- onion dome — a bulbous, domelike roof ending in a sharp point, characteristically used in Russian Orthodox church architecture to cover cupolas or towers.
- onion ring — a slice of onion shaped into a ring and deep-fried in batter
- onion snow — a snowfall in late spring; the last snow of the season.
- onion soup — a soup or broth made from onions and stock
- onion weed — a plant of Australia and New Zealand, Nuthoscordum inodorum, having a strong onion-like smell and reproducing from bulbs and seeds
- only child — sb without siblings
- onocentaur — a centaur whose legs and body are that of a donkey as opposed to a horse
- onomastics — the study of the origin, history, and use of proper names.
- onslaughts — Plural form of onslaught.
- ontologies — Plural form of ontology.
- ontologise — Alt form ontologize.
- ontologism — the doctrine that the human intellect has an immediate cognition of God as its proper object and the principle of all its cognitions.
- ontologist — the branch of metaphysics that studies the nature of existence or being as such.
- ontologize — to express in ontological terms; regard from an ontological viewpoint.