English Words: F
18,613 words · Page 149 of 373
A measure of the amount of information that an observable random variable X carries about an unknown parameter θ of a distribution that models X. Formally, it is the variance of the score, or the expected value of the observed information.
A particular algorithm for generating an unbiased random permutation of a set. It selects elements randomly from the initial set until none remain.
Of or relating to Ronald Fisher (1890–1962), English statistician, evolutionary biologist, geneticist, and eugenicist.
A suggested sexual selection mechanism to account for the evolution of exaggerated male ornamentation (such as a peacock's plumage) by persistent, directional female choice.
A signet ring bearing an image of Saint Peter fishing, used in signing papal briefs.
A suburban village and harbour west of Musselburgh, East Lothian council area, Scotland (OS grid ref NT3372).
A wide-angle lens having an extremely wide field of view (approaching or exceeding 180 degrees) and producing images that are circular or distorted by curvature at the edges.
An electronic device that uses sonar to measure water depth and shows outlines of fish and bottom features on a LCD or CRT screen
A political theory, sometimes suggested by far-left activists, which asserts that centrists and the far right are politically allied.
A business located at the water's edge that provides support to fishermen and which buys and then processes and onsells their catch.
Spelling & Dictionary Insight
The English alphabetical index for the letter F contains 18,613 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 373 pages, and you are currently viewing page 149. 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 "F" 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.