Main
verb
Short for mainline.
To mainly play a specific character, or side, during a game.
“He mains the same character as me in that game.”
Of a road: to convert into a main or primary road.
adjective
Of chief or leading importance; prime, principal.
Chief, most important, or principal in extent, size, or strength; consisting of the largest part.
“main timbers main branch of a river main body of an army”
(of force, strength, etc.) Full, sheer, undivided.
Synonyms: largest
adverb
Exceedingly, extremely, greatly, mightily, very, very much.