optic
gb/ˈɑptɪk/ us/ˈɑptɪk/
B2
English
~ 8300
Senses
0 senses
adjective
technical
C1
property
1
relating to the eye or vision
About the eye or about seeing.
Usage pattern:
optic [noun]
Common mistake:
Learners often confuse "optic" with "optical." "Optic" is most common in medical or biological phrases like "optic nerve," while "optical" is more general and used for devices or physics, like "optical lens" or "optical cable." Learners may also try to use "optic" on its own to mean eyesight (e.g., *"My optic is bad"*), but natural English uses "eyesight" or "vision" instead.
Synonyms
ocular (More formal and technical; used mainly in medical or scientific contexts.)
Antonyms
nonvisual (Describes things not related to sight or vision.)
Collocations
optic nerve
|optic neuritis
|optic disc
|optic chiasm
|optic pathway
|optic atrophy
Themes
medicine
|science
|body
|health
Examples
- The doctor ordered an MRI to check for damage to the optic nerve.
- Optic health can be affected by long-term high blood pressure.
- Researchers are studying optic disorders that cause sudden vision loss.
- The blow to his head caused temporary optic dysfunction in his right eye.
Learner examples
- He has a problem with the optic nerve in his left eye.
- The test showed no optic damage after the accident.
- Some diseases can cause optic problems and make it hard to see.
Noun
informal
B2
entity
2
sighting device for aiming
A device you look through, like a scope or sight, to help you aim a gun or see better with a tool.
Usage pattern:
mount an optic on [something]
Common mistake:
Learners may think "optic" as a noun means the eyeball itself in modern everyday English, but that use is rare and sounds old-fashioned. In current informal use, especially in gaming and shooting contexts, "an optic" usually means a scope or similar sighting device.
Synonyms
scope (More common everyday term; sounds less technical and is widely understood, especially for rifle sights.)
Antonyms
iron sights (Refers to basic metal sights on a gun, used without any optical device; contrasts with using an optic.)
Collocations
rifle optic
|red-dot optic
|mount an optic
|swap optics
|high-end optic
|low-power variable optic
Themes
technology
|hobbies
|sports
Examples
- He mounted a new optic on his rifle before the competition.
- The budget for the build didn't leave much money for a quality optic.
- Gamers complained that the default optic in the game made it hard to track targets.
- A fogged-up optic can ruin your accuracy in bad weather.
Learner examples
- He put a new optic on his hunting rifle.
- This optic helps me see the target clearly.
- The old optic is heavy, so she wants a lighter one.
adjective
technical
C1
property
3
relating to light or optics
About light and how it is used or controlled in tools and systems.
Usage pattern:
optic [noun]
Common mistake:
Learners often use "optic" instead of the far more common "optical" in this sense. While phrases like "optic sensor" or "optic fiber" exist, "optical sensor" and "optical fiber" are generally more standard in modern technical English.
Synonyms
optical (Much more common in this meaning; used in most modern scientific and technical phrases instead of "optic.")
Antonyms
non-optical (Describes systems or methods that do not use light, highlighting contrast with optic/optical technologies.)
Collocations
optic fiber
|fiber-optic network
|optic sensor
|optic components
|optic communication systems
|integrated optic devices
Themes
science
|technology
Examples
- The company specializes in optic sensors for industrial robots.
- Engineers are developing new optic materials to improve data transmission speeds.
- The lab focuses on integrated optic circuits for next-generation communication systems.
Learner examples
- The new phone uses tiny optic sensors.
- They are building faster optic networks for the city.
- He studies optic systems that move data with light.
Noun
literary
C2
entity
4
the eye (rare, literary)
The eye, as a body part, in old or literary style.
Usage pattern:
the [adjective] optic
Common mistake:
Learners might try to use "optic" as a normal modern word for "eye," but this sounds unnatural today. Use "eye" in everyday English and reserve this meaning of "optic" for understanding older or literary texts.
Synonyms
eye (The normal, everyday word; "optic" in this sense is rare and sounds old-fashioned or poetic.)
Antonyms
blindness (Represents the lack of sight that results when the eye does not function.)
Collocations
delicate optic
|human optic
Themes
body
|literature
|health
Examples
- The fragile human optic is easily damaged by flying debris.
- Old medical texts sometimes refer to the eye simply as the optic.
- The poet described the hero's optic as shining with fierce resolve.
Learner examples
- In this old book, the word "optic" means the eye.
- The writer talks about the human optic in a strange, old style.
- Some old doctors used the word "optic" for the eye.
Grammar
Dictionary form
optic
IPA
GB/ˈɑptɪk/
US/ˈɑptɪk/
Syllables & stress
op - tic (2 syllables)
Stress on 1st syllable (op)
Word forms
Adjective
- Base: optic
Noun
- Base: optic
- Plural: optics
Word family
Forms
optics
noun
Core family
optical
adjective B1
optically
adverb
Related words
optician
noun
optometrist
noun
optometry
noun
Expressions
fiber-optic cable
1/fˈaɪbɚ ˈɑptɪk kˈeɪbəl/
fixed phrase
technical
cable that carries data as light
A special cable made of very thin glass or plastic strands that carries information as light signals.
Examples
- The new internet service uses fiber-optic cable to deliver faster speeds.
- Engineers had to dig up the street to lay a fiber-optic cable between the buildings.
optic nerve
1/ˈɑptɪk nˈɚv/
fixed phrase
technical
nerve from eye to brain
The nerve that takes visual signals from the eye to the brain so you can see.
Examples
- Damage to the optic nerve can cause permanent vision loss.
- The scan showed swelling around her left optic nerve.
- Glaucoma slowly harms the optic nerve over many years.