spyglass

noun
UK /ˈspaɪ.ɡlɑːs/
US /ˈspaɪ.ɡlæs/

A spyglass is a small tube you look through to see faraway things up close.

The pirate used a spyglass to spot a ship on the horizon.


OTHER MEANINGS

2. A small telescope used on a ship to look at distant objects.

The captain raised his spyglass to check the weather ahead.

3. Any tube-shaped device with lenses for magnifying distant views.

He built a cardboard spyglass for his science project.

4. A handheld telescope used by sailors or explorers long ago.

Explorers once relied on a spyglass to map new coastlines.