(mining, historical) A person employed to carry wooden props to parts of the mine where they are needed.

(mining, historical) A boy employed to put small coals to a stowboard.

(Scouting, US) A youth Scout who leads a patrol, having been elected by fellow Scouts in their troop.

(politics) a person in charge of a political party.

Alternative spelling of follow-the-leader

(Singapore) A government-appointed volunteer who serves in an organisation with the main purpose of bridging the gap between the Singapore Government and the people.

(military) A military operative who specializes in leading, or delivering training for, operations at high altitudes or very low temperatures.

A person who leads a people or military force in a war; a war chief, a warlord.

A product that is chosen by more consumers than any of its competitors. / A company that manufactures or markets a market leader or that outsells all other similar businesses.

(aeronautics) The airframe or component with the longest time in service, compared to others of the same design.