Question 1

What does "jerk up" mean?

Accepted Answer

To pull something upward suddenly with a quick, sharp movement.

Question 2

How do you use "jerk up" in a sentence?

Accepted Answer

She jerked up the window when she smelled smoke outside.

Question 3

Is "jerk up" formal or informal?

Accepted Answer

"jerk up" is register-neutral — appropriate in both casual and formal contexts. More literal than idiomatic in most uses. Often appears in descriptions of sudden movement.

jerk up

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