She kept plugging away at her homework until it was finished.
plugging into
Frequency:
60
%
The new employee was plugging into the company culture quickly.
plugging up
Frequency:
40
%
She was plugging up the leak in the roof with a temporary fix.
Idiomatic Expressions for plugging
Phrase: plug a gap
Meaning: to fill or cover a deficiency or weakness in a system or plan
Usage: We need to plug the gap in our security measures to prevent any further data breaches.