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noun

periscope

PEH-rihs-kohp
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Periscope (noun) means a tube-shaped viewing device with mirrors or prisms that lets someone see over or around an obstacle. Example: “The submarine crew raised the periscope to scan the surface.”

noun
1
A tube-shaped viewing device with mirrors or prisms that lets someone see over or around an obstacle.
"The submarine crew raised the periscope to scan the surface."
verb
1
To raise up and look around cautiously, in the manner of a periscope.
"Thousands of ungainly black-beaked heads would periscope and freeze in the direction of the approaching intruder." — National Geographic Magazine: Volume 99 (1951)
"Her black and white head suddenly popped out from under the covers and periscoped around." — Jim Moran, The Sentinel: A Wildfire Story (2010)
"He periscoped over the fence to see who was there."

How to use periscope

Learner’s notes

In plain EnglishA device (classically on a submarine) that lets you see around a corner or above the surface without exposing yourself.

Common pairings
raise the periscope periscope depth
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Word forms

Plural
periscopes
Third person singular
periscopes
Past tense
periscoped
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The submarine crew raised the _____ to scan the surface.

Etymology

Built in English from peri- ("around") + -scope ("instrument for viewing").

Rhymes for periscope

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Frequently asked questions

What does “periscope” mean?
The word “periscope” means a tube-shaped viewing device with mirrors or prisms that lets someone see over or around an obstacle. In plain terms, a device (classically on a submarine) that lets you see around a corner or above the surface without exposing yourself.
How do you pronounce “periscope”?
“Periscope” is pronounced PEH-rihs-kohp (/ˈpɛɹɪskoʊp/ in IPA).
How do you use “periscope” in a sentence?
Here is “periscope” used in a sentence: “The submarine crew raised the periscope to scan the surface.”
What part of speech is “periscope”?
Depending on how it is used, “periscope” can be a noun and a verb.
How many meanings does “periscope” have?
“Periscope” has 2 distinct senses listed in this dictionary. The most common is: a tube-shaped viewing device with mirrors or prisms that lets someone see over or around an obstacle.