The old radio had only one speaker and broadcasted a monophonic sound.

Every morning, the supervisor gathers all the campers for the flag raising.

The monorail is a means of transportation that uses a single track.

His voice is so monotone that it almost puts his students to sleep during the class.

The old gentleman wore a monocle that gave him a distinguished look.

The actor captivated the audience with his intense and emotional monologue.

The actor monologued on stage for hours, captivating the audience with his deep reflections.

This painting is in monochrome.

They monopolize the market.

This monorail connects the airport to the city center.