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Cram
means studying or preparing a lot of information in a very short time, usually because of a deadline.
Examples:
1- Famous actor Tom Hanks once mentioned he had to cram for his role as a pilot in the movie Sully to make sure he understood aviation details quickly.
2- My friend Alex crammed for his cooking competition by learning dozens of recipes in just two days—he might’ve made it, but he forgot to add salt to his final dish!