Which term describes words that have similar meanings?

The term that describes words with similar meanings is synonym. Synonyms are words that can be used interchangeably in some contexts because they convey the same or very similar meanings. For example, the words "happy" and "joyful" are synonyms because they both express a sense of pleasure or contentment.

Understanding synonyms is important for vocabulary development, as it allows readers and writers to enhance their language skills, avoid repetition, and express nuances in meaning. Recognizing synonyms also aids in comprehension, as it helps students grasp the meaning of a text by providing alternative words that convey the same ideas.