stop or halt is a four letter word meaning the opposite of go.
swim?
to look or to seek
that would be "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
Move?
stop
A four letter word for 'don't go' is stay.
The first is 'f', as the four-letter word is 'find.'
stop
stop
seek
stop
s
seek
M - move
over
Seek