The difference between the electric potential of an electrode or cell under the passage of a current and the thermodynamic value of the electrode or cell potential in the absence of electrolysis.

overvotenoun

A case in which a voter has marked a ballot for more choices than allowed by the rules

overvoternoun

One who overvotes.

overwaitverb

To wait for an excessive amount of time; wait beyond the time allowed or expected; wait too long.

overwalknoun

A pedestrian bridge or elevated walkway that allows one to walk over a road, stream, or other obstacle, or between the upper stories of buildings.

overwanderverb

To wander or travel over.

overwarmadj

Excessively warm.

overwarnverb

To warn excessively.

overwaryadj

Too wary; excessively cautious.

overwashverb

To wash too much or too often.

overwastedadj

Wasted or worn out; consumed; spent.

overwatchverb

To watch over.

Overwatchernoun

A player of the Overwatch series of multiplayer first-person shooter video games.

overwateradj

By or across water, especially of travel.

overwateredadj

Watered too much.

overwaxverb

To apply too much wax to.

overweakadj

Excessively weak; too feeble.

overwealthnoun

Excessive wealth.

overwealthyadj

Excessively wealthy.

overweaponedadj

Having too many weapons; overarmed.

overwearverb

To wear out; to exhaust.

overwearyverb

To weary too much; to tire out.

overweatherverb

To expose too long to the influence of harsh weather, or show the effects of such exposure.

overweenverb

To think too highly or arrogantly of (oneself).

overweenernoun

Someone who overweens.

overweeningadj

Unduly confident; (sometimes also) arrogant.

overweeninglyadv

In an overweening way; arrogantly.

Spelling & Dictionary Insight

The English alphabetical index for the letter O contains 15,494 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 310 pages, and you are currently viewing page 291. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "O" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.