periscope - Master This Word
Master this word with our 5-step learning method – Learn English in English
periscope Word Meanings
- a device for viewing objects that are not in the direct line of sight
- an optical instrument for seeing above the water's surface from a submarine
periscope Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
periscope Phonetic & Pronunciation
UK
/ˈpɛrɪskəʊp/
US
/ˈpɛrɪskoʊp/
periscope Word Etymology
(a) 'peri-' meaning 'around' + 'scope' meaning 'to look'; (b) Originated from Greek 'peri' + 'skopein' → Latin 'periscopium' → Old French → English; (c) Imagine a long tube reaching out over the surface, allowing you to see beyond obstacles, like a submarine peering above water.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
A periscope is a device that lets you see objects that are not in your direct line of sight by reflecting light through a tube with mirrors or prisms. It is most famously associated with submarines, allowing the crew to observe the surface from below without exposing themselves. The basic design uses a pair of mirrors or prisms to bend the line of sight, so you look through one end and see through the other. Periscopes have also appeared in aviation, hospitals, and security towers as discreet viewing tools. Etymologically, peri means around and scope means to look, which captures the idea of peering beyond obstacles.
Usage Reminders
- - Remember periscope is a niche viewing tool, not a common toy.
- - Do not confuse with a telescope; light is bent, not magnified for far targets.
- - Pay attention to your pronunciation: per-ih-skope.
- - Use in contexts like submarines, observation posts, or film scenes.
- - Note the word parts: peri- around, scope to look.
Common Misconceptions
- Periscope can see through walls or solid objects.
- It is just a fancy telescope with bigger magnification.
- All periscopes are the same everywhere and in every field.
- Periscope depth means the submarine is fully surfaced.
- The term is widely used to describe any secretive search.
Thinking Differences
English learners often picture periscope strictly as a submarine gadget, so they default to naval contexts and worry about magnification or camera associations. The term’s parts, peri and scope, invite a spatial, 'around-looking' mind-set, so learners should note that it denotes viewing beyond obstacles, not just distant targets.
Learning Tips
- Link periscope to submarines in context to fix meaning.
- Differentiate from telescope by focusing on light reflection, not magnification.
- Practice pronunciation: per-i-scope.
- Use in micro-observation scenarios (security, towers) too.
- Remember the morphology: peri- around + scope to look.
- Watch for collocations: periscope depth, periscope tube.
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the definition of 'periscope'?
A.A device used to observe objects at a distance, typically used in submarines.
B.A type of telescope used for stargazing.
C.A section of a ship where the captain steers.
D.A small underwater camera.
Step 2: Usage
Which sentence uses the word 'periscope' correctly?
A.She drove past the periscope on her way to work.
B.The artist painted a beautiful periscope on the canvas.
C.I used my periscope to look out for enemy ships.
D.He offered a periscope of oranges during the meeting.
Step 3: Similar Words
What is a synonym for 'periscope'?
A.Lens
B.Observer
C.Telescope
D.Viewer
Step 4: Opposite Words
What is the opposite of 'periscope'?
A.Invisibility
B.Concealment
C.Camera
D.Hidden object
Step 5: Mastery
Can you think of a real-life context involving the use of a periscope?
A.In a submarine, crew members use a device to see above the water's surface.
B.I looked through binoculars while birdwatching at the park.
C.He used a magnifying glass to read the newspaper.
D.The scientist examined the stars using a digital camera.
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