friction
The 8-letter "f" word in science that means force is "friction."
friction
"Pressure" is an 8-letter word related to force that starts with the letter "f."
Friction
The 8-letter word that means to put under stress is "pressure." It refers to the exertion of force or influence on someone or something, often leading to tension or strain.
pressure
An 8 letter word that means the inside of anything might be "interior." This word has 8 letters and would probably fit your crossword puzzle clue.
"Endorsement" is an 8-letter word that means official approval or support.
birthday
accurate
transfer
famished