I dropped a quarter into the coin-op and spent the next hour trying to beat my high score.

The technician adjusted the gain settings on the op-amps before running the audio test.

I popped into the Co-op to grab some bread and milk before work.

The police raided the abandoned warehouse after receiving a tip about a grow-op.

The nurse checked the post-op for signs of infection before discharge.

The post-op nurse reviewed his medication schedule and mobility plan before discharge.

On weekends I hunt for vintage denim and mismatched mugs at local op shops.

Because the machine was non-op, production was halted until technicians could inspect it.

At the community panel, a non-op spoke candidly about the challenges and support they needed.

The newspaper published several op-eds arguing for environmental reform this month.