An informal and friendly address to a stranger; a friendly (or occasionally antagonistic) placeholder name for a person one does not know.
A partner for a particular activity.
A friend or casual acquaintance.
Resembling a bud.
A person far removed from the conversation.
To assign a buddy, or partner, to.
A respectful term of address to an adult male (often older), especially if his name or proper title is unknown.
A man of a higher rank or position.
to a teacher.
to a knight or other low member of the peerage.
to a superior military officer.
A respectful term of address to a man of higher rank or position
To address (someone) using "sir".