I had to phone collect to make a long-distance call.

I had to call collect because I didn't have any money.

Collective bargaining is an important process for employers and labor unions to negotiate and reach agreements.

The collective farm was a common feature in the former Soviet Union.

Collective leadership is a system of governance where power and decision-making are shared among a group of leaders.

The herd of elephants moved gracefully through the savannah.

Collective security is an important concept in international relations.

She remained calm, cool, and collected during the crisis.