What does "let up" mean?

[Neece]

English Language Tests, Intermediate level

ESL/EFL Test #195 "Phrasal Verbs (L)", question 2

At long last the storm is starting to look like it's going to ..........

(a) let in
(b) let down
(c) let up

English Language Tests, Intermediate level

ESL/EFL Test #195 "Phrasal Verbs (L)", answer 2

At long last the storm is starting to look like it's going to let up.

Correct answer: (c) let up
_________________________

What does "let up" mean?

Neece

[Linda]

Hi Neece,
"Let up" is a common expression that refers to "to slowing down; diminishing and coming to a stop; to cease."
For example: The heavy rainfall finally let up this morning.
_________________
One Way of Learning English Grammar
Learn English with Linda Arlia