Thesaurus is a tool use to find the synonym of the of a word.
Here's the way to use the thesaurus in the word processor.
=> highlight the word, then right-click, Navigate to synonyms and the words will display.
Answer:
Your resting heart rate will decrease as your heart becomes stronger through
Explanation:
You should change the font of that specific word to another colour. And you can also make it bold and italic. Furthermore, you may even italicize it and make the font larger.
Hope it helps :)