This is the traditional and still most widely-used way of making your characters speak.

Bokmål is now the most widely-used written standard of contemporary Norwegian.

A manufacturer representative is the most widely-used type of agent.

The third edition published in 1957 is the most widely-used version for the subject.

The horse was the most widely-used animal throughout the recorded history of warfare.

The fly D. melanogaster is the most widely-used animal in genetic studies.

The most widely-used statistical approach to prediction is ranking.

Unified Modeling Language is the most widely-used example for software design.

The tool is an extension to Eclipse, the most widely-used open source integrated development environment.

Due to the economic conditions in the country and the short broadcast day, radio is the most widely-used medium.