Scientists identified the causer of the unexpected algae bloom as agricultural runoff.

Scientists studied the causers of the sudden decline in bee populations to develop conservation strategies.

Causers gathered at the town hall to hear the mayor's plan to prevent future outages.

At the town archives, the researcher discovered that Causer was originally an occupational surname.

When the trouble causer disrupted the meeting for the third time, everyone finally lost patience.

Although small and charming, the new intern quickly became a trouble-causer in the office.

The trouble causers in the neighborhood finally apologized to everyone they had upset.

The school installed surveillance cameras to deter trouble-causers from vandalizing the playground.

After the lecture, the professor invited the students to join a casual causerie about the ethical issues raised.

At the literary salon, she read several witty causeries that had the audience laughing and nodding in appreciation.