5-Letter Words Starting With O
Here's the list of all the 260 5-Letter Words Starting With O in the English Language.
The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.
Common Words (with Definitions and Examples) | |
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other | 1. recently past 2. belonging to the distant past More Definitions → |
order | 1. (often plural) a command given by a superior (e.g., a military or law enforcement officer) that must be obeyed 2. a degree in a continuum of size or quantity More Definitions → |
offer | 1. give something useful or necessary to 2. present for acceptance or rejection More Definitions → |
often | 1. many times at short intervals 2. frequently or in great quantities More Definitions → |
owner | 1. (law) someone who owns (is legal possessor of) a business 2. a person who owns something More Definitions → |
older | 1. advanced in years; (`aged' is pronounced as two syllables) 2. used of the older of two persons of the same name especially used to distinguish a father from his son More Definitions → |
owned | 1. having an owner; often used in combination More Definitions → |
ocean | 1. a large body of water constituting a principal part of the hydrosphere 2. anything apparently limitless in quantity or volume More Definitions → |
occur | 1. come to pass 2. come to one's mind; suggest itself More Definitions → |
opera | 1. a drama set to music; consists of singing with orchestral accompaniment and an orchestral overture and interludes 2. a building where musical dramas are performed More Definitions → |
outer | 1. being on the outside or further from a center 2. located outside More Definitions → |
omega | 1. the ending of a series or sequence 2. the last (24th) letter of the Greek alphabet More Definitions → |
olive | 1. small ovoid fruit of the European olive tree; important food and source of oil 2. evergreen tree cultivated in the Mediterranean region since antiquity and now elsewhere; has edible shiny black fruits More Definitions → |
oasis | 1. a fertile tract in a desert (where the water table approaches the surface) 2. a shelter serving as a place of safety or sanctuary More Definitions → |
organ | 1. a fully differentiated structural and functional unit in an animal that is specialized for some particular function 2. a government agency or instrument devoted to the performance of some specific function More Definitions → |
onion | 1. the bulb of an onion plant 2. bulbous plant having hollow leaves cultivated worldwide for its rounded edible bulb More Definitions → |
ozone | 1. a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation) More Definitions → |
orbit | 1. move in an orbit 2. the (usually elliptical) path described by one celestial body in its revolution about another More Definitions → |
oxide | 1. any compound of oxygen with another element or a radical More Definitions → |
optic | 1. of or relating to or resembling the eye 2. relating to or using sight More Definitions → |
onset | 1. the beginning or early stages 2. (military) an offensive against an enemy (using weapons) More Definitions → |
ounce | 1. a unit of apothecary weight equal to 480 grains or one twelfth of a troy pound 2. a unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams More Definitions → |
owing | 1. owed as a debt More Definitions → |
octet | 1. the cardinal number that is the sum of seven and one 2. eight performers or singers who perform together More Definitions → |
obese | 1. excessively fat More Definitions → |
otter | 1. the fur of an otter 2. freshwater carnivorous mammal having webbed and clawed feet and dark brown fur More Definitions → |
oddly | 1. in a manner differing from the usual or expected 2. in a strange manner More Definitions → |
opium | 1. an addictive narcotic extracted from seed capsules of the opium poppy More Definitions → |
ovary | 1. the organ that bears the ovules of a flower 2. (vertebrates) one of usually two organs that produce ova and secrete estrogen and progesterone More Definitions → |
overt | 1. open and observable; not secret or hidden More Definitions → |
oiled | 1. treated with oil More Definitions → |
odour | 1. the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form 2. any property detected by the olfactory system More Definitions → |
octal | 1. of or pertaining to a number system having 8 as its base More Definitions → |
olden | 1. relating to time long past More Definitions → |
ochre | 1. any of various earths containing silica and alumina and ferric oxide; used as a pigment 2. a moderate yellow-orange to orange color More Definitions → |
orang | 1. large long-armed ape of Borneo and Sumatra having arboreal habits More Definitions → |
oxbow | 1. the land inside an oxbow bend in a river 2. a U-shaped curve in a stream More Definitions → |
oriel | 1. a projecting bay window corbeled or cantilevered out from a wall More Definitions → |
oldie | 1. a song that was formerly popular More Definitions → |
offal | 1. viscera and trimmings of a butchered animal often considered inedible by humans More Definitions → |
oaten | 1. of or related to or derived from oats More Definitions → |
oomph | 1. attractiveness to the opposite sex 2. the activeness of an energetic personality More Definitions → |
ology | 1. an informal word (abstracted from words with this ending) for some unidentified branch of knowledge More Definitions → |
oiler | 1. a worker who oils engines or machinery 2. a well that yields or has yielded oil More Definitions → |
ovine | 1. of or pertaining to or of the nature of or characteristic of a sheep or sheep More Definitions → |
outdo | 1. be or do something to a greater degree 2. get the better of More Definitions → |
ovate | 1. of a leaf shape; egg-shaped with the broader end at the base 2. rounded like an egg More Definitions → |
outre | 1. conspicuously or grossly unconventional or unusual More Definitions → |
ohmic | 1. of or relating to or measured in ohms More Definitions → |
ovoid | 1. rounded like an egg 2. an egg-shaped object More Definitions → |
opine | 1. express one's opinion openly and without fear or hesitation 2. expect, believe, or suppose More Definitions → |