Definition of forget
1a
: to lose the remembrance of : be unable to think of or recall
I forget his name
b
obsolete
: to cease from doing
2
: to treat with inattention or disregard
forgot their old friends He's now a forgotten hero.
3a
: to disregard intentionally : overlook
—usually used in the imperative I shouldn't have said that, so just forget it
b
: to give up hope for or expectation of
—usually used in the imperative as for prompt service, forget it
1
: to cease remembering or noticing
forgive and forget
2
: to fail to become mindful at the proper time
forgot about paying the bill
forget oneself
: to lose one's dignity, temper, or self-control
She forgot herself because of the liquor she had drunk. So infuriated him that he forgot himself and had a tantrum.
Test Your Vocabulary
Odd Habits and Quirks
-
- Which of the following best describes an easily irritated person?

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share forget
Time Traveler for forget
The first known use of forget was before the 12th century
See more words from the same century