Synonyms are words that have the same or nearly the same meaning as another word. They can often be interchanged in a sentence without changing its overall meaning. For example, "happy" and "joyful"

Here's the explanation for synonyms:

Synonyms are words that have the same or nearly the same meaning as another word. They can often be interchanged in a sentence without changing its overall meaning. For example, "happy" and "joyful" are synonyms.