A leader or head of a group of people, organisation, etc.

(heraldry) The top part of a shield or escutcheon; more specifically, an ordinary consisting of the upper part of the field cut off by a horizontal line, generally occupying the top third.

The principal part or top of anything.

An informal term of address, sometimes used ironically, and can also be offensive when used to address a native american or first nations man in the us and canada.

(US, slang) To smoke cannabis.

Primary; principal.

(Scotland) Intimate, friendly.