main, major
important, serious, or significant; chief in size or importance
owner
major, main, primary
Lord
master
host
main actor
chief actor
leading actor
male title role
main force
main strength of an army
commander-in-chief
an officer in charge of all of the armed forces
positive, correct
upright, straight
main, the right side
essential part
outline, main headings
the main rope of a fishing net
to lead, guide
to get, receive, understand
collar, neck
the main points