observe
Americanverb (used with object)
-
to see, watch, perceive, or notice.
He observed the passersby in the street.
- Antonyms:
- ignore
-
to regard with attention, especially so as to see or learn something.
I want you to observe her reaction to the judge's question.
- Synonyms:
- note
- Antonyms:
- ignore
-
to watch, view, or note for a scientific, official, or other special purpose.
to observe an eclipse.
- Antonyms:
- ignore
-
to state by way of comment; remark.
He observed frequently that clerks were not as courteous as they used to be.
-
to keep or maintain in one's action, conduct, etc..
You must observe quiet.
-
to obey, comply with, or conform to.
to observe laws.
- Antonyms:
- ignore
-
to show regard for by some appropriate procedure, ceremony, etc..
to observe Palm Sunday.
- Antonyms:
- ignore
-
to perform duly or solemnize (ceremonies, rites, etc.).
- Antonyms:
- ignore
-
to note or inspect closely for an omen or sign of future events.
verb (used without object)
-
to notice.
-
to act as an observer.
-
to remark or comment (usually followed by on orupon ).
verb
-
(tr; may take a clause as object) to see; perceive; notice
we have observed that you steal
-
(when tr, may take a clause as object) to watch (something) carefully; pay attention to (something)
-
to make observations of (something), esp scientific ones
-
to make a comment or remark
the speaker observed that times had changed
-
(tr) to abide by, keep, or follow (a custom, tradition, law, holiday, etc)
Related Words
Observe, witness imply paying strict attention to what one sees or perceives. Both are “continuative” in action. To observe is to mark or be attentive to something seen, heard, etc.; to consider carefully; to watch steadily: to observe the behavior of birds, a person's pronunciation. To witness, formerly to be present when something was happening, has added the idea of having observed with sufficient care to be able to give an account as evidence: to witness an accident.
Other Word Forms
-
nonobservingadjective
-
nonobservinglyadverb
-
observableadjective
-
observablenessnoun
-
observablyadverb
-
observedlyadverb
-
observinglyadverb
-
preobserveverb (used with object)
-
quasi-observedadjective
-
reobserveverb
-
self-observedadjective
-
unobservedadjective
-
unobservingadjective
-
well-observedadjective
Etymology
Origin of observe
First recorded in 1350–1400; Middle English observen, from Middle French observer, from Latin observāre “to watch, regard, attend to,” equivalent to ob- ob- + servāre “to keep, save, pay heed to”
Explanation
Observe is often used to mean “remark” or “comment.” When trying to start up a conversation with an attractive stranger, you might observe that it’s raining outside (but hopefully you’ll come up with something more interesting to say). Observe has several secondary meanings, one of which is “notice” or “discover.” If you start a conversation with that attractive stranger, you’ll probably observe whether he or she seems interested in talking to you. Observe can also mean “watch carefully with great interest”; you might be tempted to observe the attractive stranger in this manner, but that might make him or her uncomfortable. Try to stay cool.
Vocabulary lists containing observe
Jim Burke's Academic Vocabulary List
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
The SAT: Multiple-Meaning Words, List 5
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Memorial Day Words
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Their analysis showed that combining highly accurate clocks with techniques from trapped-ion quantum computing could make it possible to observe previously hidden quantum properties of time.
From Science Daily • May 18, 2026
Similarly, those in the media or the foreign policy establishment who profess dismay that China’s rulers now view the U.S. as a global equal are also failing to observe the obvious.
From Salon • May 17, 2026
Maldivian President Mohamed Muizzu travelled to Vaavu Atoll on Saturday to observe the search operations.
From BBC • May 16, 2026
And it is fascinating to observe that Handel’s oratorio and Melville’s novel, two works of immense popularity that are among the greatest works of their genres, both function on the outskirts of narrative.
From Los Angeles Times • May 11, 2026
This error, followed by others, as we can now observe from events, is the cause of the threats to that kingdom.
From "The Prince" by Niccolò Machiavelli
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.