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perceive – v. to notice or become aware of (something)
grammar – n. the whole system and structure of a language
precaution – n. a measure taken to prevent something dangerous from happening; a safeguard
pod – n. a self-container vehicle or other device
comedy club – n. a business where humorists perform
snore – v. to breathe noisily while sleeping
practice – n. the action of repeating an exercise in order to improve one's understanding or skills
