Search Result for "purring": 

The Collaborative International Dictionary of English v.0.48:

Pur \Pur\, v. i. [imp. & p. p. Purred; p. pr. & vb. n. Purring.] [Of imitative origin; cf. Prov. G. purren.] To utter a low, murmuring, continued sound, as a cat does when pleased. [Written also purr.] [1913 Webster]
Moby Thesaurus II by Grady Ward, 1.0:

39 Moby Thesaurus words for "purring": beaming, beatific, beatified, birring, blessed, blissful, bombilation, bombinating, bombination, booming, burring, buzzing, capering, cheerful, chirping, dancing, droning, flushed with joy, gay, glad, glowing, happy, hum, humming, joyful, joyous, laughing, leaping, low rumbling, radiant, singing, smiling, smirking, sparkling, starry-eyed, thrice happy, thrumming, whirring, whizzing