Answer:
synonym
Step-by-step explanation:
In the English language this is known as a synonym. It is basically just another word that means either exactly the same or is very similar to the word that it is being compared to. Many times it is used as a way of helping the reader understand a word that is not commonly used by providing a synonym word that is commonly used and understood by the reader. The reader can then make the connection between both words and instantly understand what the first word means.