English Words: R
21,470 words · Page 25 of 430
An inland traditional county of Wales, bounded to the north by Montgomeryshire and Shropshire, to the east by Herefordshire, to the south by Brecknockshire and to the west by Cardiganshire.
The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.
A measure on the σ-algebra of Borel sets of a Hausdorff space that is locally finite and inner regular.
An integral transform which takes a function defined on the plane to a function defined on the (two-dimensional) space of lines in the plane, whose value at a particular line is equal to the line integral of the function over that line.
A theorem on convex sets, stating that any set of d + 2 points in Rᵈ can be partitioned into two sets whose convex hulls intersect.
In the Russian Orthodox Church, a commemoration of the departed observed on the second Tuesday or second Monday of Pascha (Easter).
An orthorhombic-dipyramidal pistachio green mineral containing arsenic, copper, hydrogen, iron, and oxygen.
Of, pertaining to, or advocating the expansion of queerness to include and accept certain orientations and identities that are highly contentious and traditionally widely rejected among the LGBT, including the transracial, transabled, and those with paraphilias that are stigmatized.
A hamlet in Felmersham civil parish, Bedford borough, Bedfordshire, England (OS grid ref TL0057).
Spelling & Dictionary Insight
The English alphabetical index for the letter R contains 21,470 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 430 pages, and you are currently viewing page 25. 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 "R" 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.