Answer:
Synonym
Explanation:
The word you are looking for that matches this definition is a synonym.
A synonym is a word having the same or nearly the same meaning as another word or a phrase. To use synonyms in your speaking or writing is a great way to expand your speech or vocabulary. It is always better to avoid using the same words all the time, to avoid sounding monotonous and boring. For example, you need to tell or to write something on a topic that often says about happiness or being happy, you may find many synonyms to these words: cheerful, contented, delighted, ecstatic, elated, glad, joyful, lively, etc.
Benefits of using synonyms:
I hope it helped you :)