fuel, rest
I've is a word that means I have. I'll is a word that means I will.
Pester is a six letter word that means to annoy
Energy.
im not sure about a 7 letter word, but i do know i 8 letter word that starts with s and means the right to vote, the word is... sufferage.
Plenty.It is a six-letter word.
Rest?
Unflagging
energetic
A six letter word is regain.
regain
Regain is one whole word, re-gain.
It took a great effort for the police to regain control of the rioters. Although he won some bets later, He was unable to regain all of the money he lost.
"Re-" typically means "again" or "back" in words such as regain, relapse, and relish.
"Vigor" is a word that means having a lot of energy or enthusiasm.
The word that means without any energy is "listless."
The affix re- means again or back. In this case, it means gain back.
I've is a word that means I have. I'll is a word that means I will.