After the picnic, Jenna packed the empty Co-Colas into a recycling bag.

They were co-opping to renovate the old theater into a shared arts space.

We co-opped with the neighboring farms to share equipment and reduce costs.

The NGO emphasized co-responsibility between donors and local communities to ensure sustainable development.

Both department heads are co-responsible for the project's success.

As a co-selector, Maria reviewed each candidate's performance before the final selection.

The co-selectors coordinated their efforts to finalize the candidate list.

The project's success depended on clear co-directions from the design and engineering teams.

The two species are co-evolving in response to each other's defenses.

To adapt to rapid environmental shifts, many species must co-evolve with their changing ecosystems.