English Words: U
23,789 words · Page 457 of 476
Any transferase that catalyses the transfer of a uridylyl group between molecules
Certain sacred objects (whose precise form and nature is unknown) that were worn on the breastplate of the Jewish high priest, as described in the Bible, and used in divination or casting lots.
A mesh placed above a urinal's drain to prevent debris from clogging the plumbing, sometimes shaped to also hold a urinal cake.
Of a fish: oriented vertically, with the head to base and tail to chief, as if positioned for diving.
Liquid waste consisting of water, salts, and urea, which is made in the kidneys, stored in the bladder, then released through the urethra.
An encapsulated collection of extravasated urine, the result of a breach of the integrity of the pelvis or calices of the kidney or of the ureter.
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 457. 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.