English Words: F
18,613 words · Page 1 of 373
The major key with the notes F, G, A, B♭, C, D, E, the key signature of which has one flat.
A (generally hypothetical) grade lower than an "F"; a grade representing not merely a failure, but a complete and utter failure.
A type of point defect in crystals where an anion (negative ion) vacancy in the lattice traps one or more electrons, creating a localized site that absorbs specific wavelengths of light, thereby coloring the typically transparent material (e.g. the yellowing of NaCl due to trapped electrons in missing chloride sites); defects that form due to irradiation (e.g. X-rays), heat, or alkali metal vapor treatment and can be removed by annealing.
The theoretical major key with F-flat as its tonic and the notes F♭, G♭, A♭, B♭♭, C♭, D♭, and E♭.
The major key with the notes F♯, G♯, A♯, B, C♯, D♯, and E♯, the key signature of which has six sharps.
Any of the discrete steps or stopping points for adjusting the aperture of a lens, either marked on a ring on the lens and adjusted by rotating that ring or marked in the display of a digital camera and adjusted by buttons or touch-sensitive controls.
Instead of focusing excessively on photographic technique, it is more important to be in the right place at the right time.
The first filial generation of seeds or animal offspring, which are usually vigorous and uniform. Produced by crossing two distinctly different parents.
Of audio, a feminine or female voice using non-identifying pronouns; audio spoken by a woman intended for a listener of any sex or gender.
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 1. 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.