We have no meanings for "hear the purr" in our records yet.
1 Overhead you hear the purr of engines- aflightof aeroplanes breasting the clouds.
2 They could hear the purr of the taxicab as it dashed up the street.
3 She lifted her head and listened intently, hoping to hear the purr of John's car.
4 He heard the purr of a motor in the lane beside the house.
5 Then in the stillness Mark heard the purr of a machine.
6 A few moments later he heard the purr of engines as Shrike's airship went hurrying after it.
7 But though they imagined several times they heard the purr of one of the prowlers, they reached the plateau without adventure.
8 At last we heard the purr of three engines together, and then a moment later the faint rustle of others in the distance.
9 He must have heard me in some way, and surely must have heard the purr of the focal plane shutter as I took his picture.
10 So completely did it obliterate all other sound that none of the four heard the purr of a motor behind them, driven at excessive speed.
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