| Word | Definitions | Synonyms |
|---|---|---|
| foully | (adverb) in a wicked and shameful manner | - |
| (adverb) in an unfair and insulting manner | Synonyms: insultingly | |
| fourfold | (adverb) by a factor of four | Synonyms: four times |
| foursquare | (adverb) with firmness and conviction; without compromise | Synonyms: squarely, straightforwardly |
| (adverb) in a square position | - | |
| fourth | (adverb) in the fourth place | Synonyms: fourthly |
| fourthly | (adverb) in the fourth place | Synonyms: fourth |