To doze off (informal) is to slowly fall into a light sleep, especially during the day.
Examples of use:
1. My elderly aunt likes to doze off in her armchair after lunch.
2. I was just dozing off when the telephone rang and woke me up.
infinitive – doze off
present simple – doze off and dozes off
-ing form – dozing off
past simple – dozed off
past participle – dozed off
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