English Words: U

23,789 words · Page 130 of 476

undercroftnoun

A cellar or vaulted storage room.

undercrossnoun

A passage or underpass where a roadway, railway, or infrastructure crosses under another.

undercrossingnoun

underpass

undercrowdverb

To underfill; to fill with too low a population density.

undercrowdedverb

simple past and past participle of undercrowd

undercrowdingnoun

The action or event of a space having too few occupants.

undercrustnoun

A crust that forms the bottom of a pie, tart or other dish; a layer of pastry that supports the filling.

undercryverb

To cry out.

undercryptnoun

A lower crypt or vault.

underculturaladj

Of or pertaining to an underculture.

underculturenoun

A subculture, a non-dominant culture of a portion of a society, as opposed to the society's overculture.

undercurenoun

An instance or result of undercuring.

undercurrentnoun

A current of water which flows under the surface, and often in a different direction from surface currents.

undercurvenoun

The curve formed by the underside of something.

undercurvedadj

Curved so as to pass below the body; said of parts of the upper surface of an insect.

undercutnoun

A cut made in the lower part of something; the material so removed.

undercutternoun

One who, or that which, undercuts.

undercuttingnoun

An undercut; a cut in the lower part.

undercuttinglyadv

So as to undercut.

Underdahlname

A surname from Norwegian.

underdaksnoun

underpants

underdampverb

To fail to sufficiently suppress vibrations in.

underdampedadj

Possessing a damping ratio between one and zero.

underdampernoun

A damper located beneath the hammers in a piano.

underdancedadj

Of a theatrical production, etc.: featuring too little dancing.

underdeaconnoun

A subordinate deacon.

underdealverb

To deal insufficiently or inadequately; have dealings which are below requirement or expectation

underdealingnoun

Crafty, unfair, or underhand dealing; trickery.

underdecidedadj

Insufficiently decided; too undecided.

underdecknoun

The part of a bridge that lies beneath the deck, or surface.

underdeclaredadj

declared to be smaller than is the case

underdefendverb

To defend inadequately.

underdefineverb

To define too broadly, or in too little depth.

underdefinedadj

Inadequately defined.

underdefinitionnoun

The act or process of underdefining; inadequate definition.

underdeliververb

To deliver less, or at an inferior level, than promised or expected

underdeliverynoun

A delivery of insufficient material

underdenseadj

Insufficiently dense; especially not sufficiently dense enough to form a galaxy.

underdensitiesnoun

plural of underdensity

underdensitynoun

The condition or extent of being underdense.

underdescribedadj

Not described with sufficient precision.

underdesignedadj

inadequately designed

underdetectverb

To detect less of (something) than is actually present.

underdetectionnoun

Detection at excessively low levels, or at levels lower than are actually the case

underdeterminationnoun

The state or quality of being underdetermined

underdetermineverb

Particularly in the theory of scientific explanation, to provide too few constraints to specify a unique solution.

underdeterminedadj

Having too few constraints to specify a unique solution.

underdeterminednessnoun

The condition of being underdetermined.

underdeterrencenoun

inadequate deterrence

underdeterrentadj

Serving as an inadequate deterrent.

Spelling & Dictionary Insight

The English alphabetical index for the letter U contains 23,789 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 476 pages, and you are currently viewing page 130. 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 "U" 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.