lessen up

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lessen up

To lessen in intensity, degree, or amount. The crowds finally began to lessen up as the sun started to set. I hope this rain lessens up soon, or we'll have to cancel the barbecue.
See also: up
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

lessen up

v.
To diminish; abate: The wind lessened up, and the surf died down.
See also: up
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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