English Words: R
21,470 words · Page 409 of 430
A monoclinic-prismatic mineral containing calcium, hydrogen, manganese, oxygen, and silicon.
A sound change that took place in the satem branches of the Indo-European language family, and according to which an original *s changed to *š after the consonants *r, *k, *g, *gʰ and the semi-vowels *w (*u̯) and *y (*i̯).
A simple cellular automaton, unusual in being Turing-complete, where each cell's value changes depending on its current value and those of two neighbouring cells.
A one-dimensional binary cellular automaton rule, notable for solving the majority problem as well as for its ability to simultaneously describe several, seemingly quite different, particle systems.
A one-dimensional binary cellular automaton rule displaying aperiodic, chaotic behaviour.
The proposition that there are pornographic depictions of anything and everything, especially as fan art on the Internet.
The proposition that it is possible to find genderswapped versions of every fictional character, especially as fan art on the internet.
A decree issued by the court that becomes absolute at some later date unless cause is shown why it should not.
The rule according to which one digit may be added to or subtracted from the gematric value of a word.
The principle that anything is acceptable to do, use, wear, etc. just as long as it is cool.
A legal authority (e.g., a statute or judicial precedent) that governs the resolution of a particular case.
An internal rule among a military, police, etc. force defining the circumstances in which and manner with which to use force.
The doctrine that no individual is above the law and that everyone must answer to it.
The regulation requiring all traffic (travelling on a road or otherwise) to keep either to the left or the right.
A general guideline, rather than a strict rule; an approximate measure or means of reckoning based on experience or common knowledge.
To draw a line underneath, for example to mark the end of a topic or of an accounting period.
To set the standard which guides behavior; to control a situation, group, strategy, etc.
To substantially control a school administratively, financially, or in terms of its curriculum.
A maker of rules: a person, deity, or other agent (usually a sentient one, in most contexts) who makes the rules.
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 409. 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.