| Word | Definitions | Synonyms |
|---|---|---|
| burr | (verb) remove the burrs from | Synonyms: bur |
| churr | (verb) make a vibrant sound, as of some birds | Synonyms: whirr |
| purr | (verb) indicate pleasure by purring; characteristic of cats | Synonyms: make vibrant sounds |
| (verb) make a soft swishing sound | Synonyms: birr, whir, whirr, whiz, whizz |