The co-authors worked together to write the research paper.

The researchers co-authored a paper on climate change.

She is my co-author on this project.

She will co-author the book with him.

The system enforces strict atomic authorizations.

The postal authorities are responsible for delivering mail and packages.

The tax authorities are responsible for collecting and enforcing tax laws.

The author of life breathed new life into the world.

Many appeals to authority were made during the debate.

The port authorities are responsible for managing the operations and security of the harbor.