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,[sentencedict.com] 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.