To sleep through something is to stay asleep through a noise or activity.
Examples of use:
1. The baby slept through the car journey.
2. My father is lucky. He can sleep through any noise.
3. We slept through last night’s storm and woke up this morning to find part of our roof had blown off.
infinitive – sleep through
present simple – sleep through and sleeps through
-ing form – sleeping through
past simple – slept through
past participle – slept through
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