The operance of the complex machinery depended on daily maintenance.

The operativity of the new protocol will determine whether it can be implemented across all departments.

In the marginal notes, the scholar found operous used to mean a laborious task.

To filter out inactive users, the query used several NOT operators in combination with AND and OR.

The nurse monitored the patient's post-operative recovery throughout the night.

After the harvest, the farmers formed a co-operative to market their vegetables together.

The co-operative team finalized the project ahead of schedule by sharing resources and expertise.

The two teams worked co-operatively to complete the project before the deadline.

The board adopted a retro-operative policy that adjusted bonuses for the previous fiscal year.

The committee revised several operative clauses to clarify the responsibilities of each department.