optics
Optics (noun) means the branch of physics that studies light and vision. Example: “She's taking a course in optics this semester.”
How to use optics
Learner’s notesIn plain EnglishEither the science of light and vision, or — informally — how a decision or event appears to onlookers.
The "public perception" sense is common in journalism and business but is fairly informal.
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Can you complete this real example?
She's taking a course in _____ this semester.
Etymology
From Medieval Latin opticus (“optic, optical”), from Ancient Greek ὀπτικός (optikós), equivalent to optic + -ics.
Synonyms
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Frequently asked questions
What does “optics” mean?
The word “optics” means the branch of physics that studies light and vision. In plain terms, either the science of light and vision, or — informally — how a decision or event appears to onlookers.
How do you pronounce “optics”?
“Optics” is pronounced OP-tihks (/ˈɑptɪks/ in IPA).
How do you use “optics” in a sentence?
Here is “optics” used in a sentence: “She's taking a course in optics this semester.”
What part of speech is “optics”?
“Optics” is a noun.
Is “optics” a common word?
“Optics” is an uncommon word in modern English.
How many meanings does “optics” have?
“Optics” has 2 distinct senses listed in this dictionary. The most common is: the branch of physics that studies light and vision.
What is the difference between "optics" as a science and "optics" as public perception?
As a science, "optics" is the branch of physics that studies light and vision. As a figure of speech, especially in politics or business, "optics" refers to how something looks to the public regardless of the underlying facts.
Why do people say "the optics are bad"?
When people say "the optics are bad," they mean an action or decision looks poor or damaging to public perception, even if the underlying facts are defensible. This figurative use of "optics" is common in political and corporate commentary.
Is "optics" singular or plural?
"Optics" is grammatically plural in form but is typically treated as a singular, uncountable concept in both its scientific and figurative senses, taking a singular verb as in "optics is a branch of physics." In the public-perception sense, it is also often paired with a plural verb, as in "the optics are bad."
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