IPA: /ˈstrɔŋɪst/
KK: /strɔŋɡəst/
Having great physical power or strength; the most powerful or forceful.
She is the strongest athlete on the team.
Comparative: stronger
Superlative: strongest
Strongest → It is formed from "strong" (from Old English *strang*, meaning having power or force) and "-est" (a superlative suffix indicating the highest degree). The word "strongest" means having the greatest strength or power.
Think of the Old English word for power or force, 'strang', to remember that 'strongest' refers to having the greatest amount of strength.