Meaning

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

  "All firefighters report to the fire chief."

• 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 ironic.

  "Hey, chief."

Meaning

• To smoke cannabis.

Meaning

• Primary; principal.

  "Negligence was the chief cause of the disaster."

• Intimate, friendly.