5 Letter Words That Start With ON

onset

Noun : (archaic) An attack; an assault especially of an army.

Noun : (medicine) The initial phase of a disease or condition, in which symptoms first become apparent.

Noun : (phonology) The initial portion of a syllable, preceding the syllable nucleus.

onion

Noun : A monocotyledonous plant (Allium cepa), allied to garlic, used as vegetable and spice.

Noun : The bulb of such a plant.

Noun : A plant of the genus Allium as a whole.

ontic

Adjective : Ontological.

Adjective : Pertaining to being generally, as opposed to some theory of it (which would be ontology).

onega

Noun : a freshwater lake in the north-west European part of Russia, located on the territory of Republic of Karelia, Leningrad Oblast and Vologda Oblast

onium

Noun : (chemistry) any cation derived by the addition of a proton to the hydride of any element of the nitrogen, chalcogen or halogen families

Noun : (chemistry) any organic derivative of these compounds

Noun : (physics) the bound pair of a particle and its antiparticle

onely

Verb : Obsolete spelling of only [Without others or anything further; exclusively.]

oneal

on to

on cue

onymy

onsen

Noun : A (Japanese) hot spring.

Noun : A Japanese-style resort hotel at a natural hot spring, offering on-site bathing.

on dit

Noun : A flying report; rumour.

on end

oncet

Verb : (Southern US, Midland US, uncommon) Once.

oncer

Noun : (informal, historical) A one-pound note.

Noun : (poetic) A person who does something once.

Noun : (informal) A single sexual encounter between two individuals, a one-night stand.

on tap

one c

Noun : ten 10

onlay

Verb : (transitive, literary) To lay or place something on a surface.

Noun : (often attributive) A material placed such that it overlaps another.

onami

on top

Verb : On the highest point or surface.

Verb : (idiomatic) In a dominant position.

one up

Verb : (idiomatic) To outdo, to perform something slightly better than a competitor's prior effort.

Noun : (especially in phrases like "get one up on someone") An advantage over someone.

Noun : (video games) Alternative spelling of 1-up (“extra life”) [(video games) An item that grants the player an extra life in the game, staving off game over by one more try.]

onate

Noun : A surname.

oncle

on air

Verb : very happil

oneil

onder

on ice

oners

Noun : (informal) An extraordinary individual.

Noun : A small marble of little worth in children's games.

Noun : (UK) A conker that has won one match.

on it

Verb : on tha

onore

Noun : Former name of Honnavar (“Indian town”).

onawa

Noun : A city, the county seat of Monona County, Iowa, United States.

Noun : A locality in Piscataquis County, Maine, United States.

Noun : A small settlement in the Omusati Region, Namibia.

onida

Noun : A small city, the county seat of Sully County, South Dakota, United States.

onych

onaga

onlap

Noun : (geology) The phenomenon of successively younger rock strata extending progressively further across an erosion surface cut in older rocks.

Verb : (geology) To form an onlap.

onell

on key

onken

Noun : A surname from German.

onera

Noun : The Office National d'Etudes et de Recherches Aérospatiales is the French national aerospace research centre.

onley

Noun : (uncountable) A placename:

Noun : A deserted medieval village in Barby parish, Northamptonshire, England.

Noun : A town in Accomack County, Virginia, United States.

onkus

Adjective : (Australia, New Zealand, slang, dated) Inferior; unpleasant; unacceptably bad.

Adjective : (New Zealand, slang, rare, obsolete) Good; acceptable; okay.

ontal

onto-

onkos

on tod

on way

onern

onest

Verb : Obsolete form of oncet. [(Southern US, Midland US, uncommon) Once.]

onkel

on off

one of

onaye

Noun : Alternative form of inee [A type of arrow poison, made from the plant Strophanthus hispidus, used especially in the areas of Togo and Cameroon.]

onco-

onnta

onces

Verb : (frequency) One and only one time.

Verb : (temporal location) Formerly; during some period in the past.

Verb : (chiefly obsolete) At any time; ever.

on one

onudi

onere

ongar

Noun : A civil parish iand post town with a town council in Epping Forest district, Essex, England.

Noun : An outer western suburb of Dublin, Ireland.

oniel

Noun : A male given name

onnes

onora

on tow

Adjective : Alternative form of in tow

ongle

onnen

ontak

onair

oneir

on the

Verb : (chiefly African-American Vernacular, used with adjectives describing frequency) Every; on such a basis.

Verb : Used other than figuratively or idiomatically: see on, the.

oncho

ondcp

onsta

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