The first is 'f', as the four-letter word is 'find.'
M - move
seek
seek
seek
There is more than one 4-letter word that means "to go in search of."To go in search of:S for seekH for huntL for look
seek is the word you are looking for
The 4-letter root word meaning against or opposite is "anti."
pass
Look
lazy
gnus
live
Guts
left