Purr

1. (v. i. & t.) To murmur as a cat. See Pur.

2. (n.) The low murmuring sound made by a cat; pur. See Pur.

Thesaurus Entries

be in heaven, be pleased, beam, birr, bombilate, bombinate, boom, bum, burr, buzz, delight, die with delight, drone, feel happy, go into raptures, hum, joy, laugh, sing, smile, take great satisfaction, thrum, tread on air, whir, whiz