The whale spy hopping in the water.

He received spy money for his valuable intelligence.

The spy plane flew over the enemy territory undetected.

The spy planes conducted surveillance missions over enemy territory.

I spy with my little eye

He used a spyglass to get a closer look at the stars.

The spymaster carefully orchestrated the covert operation.

The spymasters gathered in a secret location to discuss their next mission.

I forgot to bring my spyglasses to the beach.

He was trained in the art of spycraft.