Synonym: birr, make vibrant sounds, whir, whirr, whiz, whizz. Similar words: pure, burr, purl, spur, burro, spurn, spurt, purge. Meaning: [pɜr /pɜː] 
n. a low vibrating sound typical of a contented cat. v. 1. make a soft swishing sound 2. indicate pleasure by purring; characteristic of cats.
n. a low vibrating sound typical of a contented cat. v. 1. make a soft swishing sound 2. indicate pleasure by purring; characteristic of cats. 
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1 the purr of an engine.
2 Carmela heard the purr of a motor-cycle coming up the drive.
3 I heard the gentle purr of an engine outside the house.
4 Cats miaow when they are unhappy, purr when they are happy.
5 A deafening purr, quite ear-splitting!
6 Kittens first purr while suckling when they are a few days old.
7 I could still purr it, bomb it, whatever, without any noticeable difference - other than the clarity.
8 She also writes her own motorcycle column, Purr, and loves riding dirt bikes.
9 Match reports purr with pleasure, capitalising especially brilliant feats for emphasis.
10 If so, the purr helps to establish and maintain a close relationship.
11 For instance, an adult female will purr while suckling her kittens and when she courts a male.
12 Joe kept his voice steady as a cat's purr.
13 I heard cars purr in the distance.
14 At once I heard a soft purr.
15 Never underestimate the power of a purr.
16 Behind me Soot, my black cat, started to purr.
17 To err is human, to purr is feline.
18 According to the book, Lucy's purr signifies the feeling of happy and content.
19 However, other species in the Felidae family also purr: bobcat, cheetah, Eurasian lynx, puma, and wild cat.
20 I could hear the gentle purr of the movie projector.
21 Kittens learn how to purr when they are a couple of days old.
22 The tiny kitten approached the enormous bear and let out a purr and a mew.
23 I stroked the cat and it gave a low purr.
24 Before he could say anything, the telephone on the Grecian plinth nearest to the girl gave a muted double purr.
25 The cat looked into my eyes and began to purr.
26 With relief she began to feed her seafood to Cas, who proceeded to purr like a small traction-engine.
27 The trembling had stopped, though the cat didn't yet purr.
28 The result is aluscious, mobile soundscape,[www.Sentencedict.com] capable of ambient purr or abrasive noisebursts.
29 House cats employ a vocal repertoire that extends from a purr to a screech.
30 The cat cleans its luxurious fur, blinks its eyes at you and begins to purr.