The key-words are important for understanding the topic.

The key words are essential for understanding the topic.

The l-words are fascinating.

The m-words are scattered all over the field.

Old World flycatchers are known for their distinctive songs.

The p-words are scattered all over the room.

There are many beautiful places to visit in this city.

The primary works of the artist are on display at the museum.

Protestant work ethics are deeply ingrained in the culture of many Western countries.

The Puritan work ethics of the early settlers greatly influenced the development of American society.