English Words: F
18,613 words · Page 50 of 373
A nuclear plant which produces fissionable material from high-energy neutrons as a byproduct in excess of the amount it uses to operate.
Faster than the speed of light in a vacuum, the theoretical speed limit for travel within the universe.
The calendar, which gave the days for festivals, courts, etc., corresponding to a modern almanac. They were generally engraved on stone, e.g. marble
Excessively particular, demanding, or fussy about details, especially about tidiness and cleanliness.
Saliva produced first thing in the morning, before breakfast, once believed to be useful in treating diseases.
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 50. 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.