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observe

American  
[uhb-zurv] / əbˈzɜrv /

verb (used with object)

observes, present (3rd person singular) observed, past participle, past observing present participle
  1. to see, watch, perceive, or notice.

    He observed the passersby in the street.

    Antonyms:
    ignore
  2. 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
  3. to watch, view, or note for a scientific, official, or other special purpose.

    to observe an eclipse.

    Antonyms:
    ignore
  4. to state by way of comment; remark.

    He observed frequently that clerks were not as courteous as they used to be.

    Synonyms:
    say, mention
  5. to keep or maintain in one's action, conduct, etc..

    You must observe quiet.

  6. to obey, comply with, or conform to.

    to observe laws.

    Synonyms:
    fulfill, follow
    Antonyms:
    ignore
  7. to show regard for by some appropriate procedure, ceremony, etc..

    to observe Palm Sunday.

    Synonyms:
    keep, celebrate
    Antonyms:
    ignore
  8. to perform duly or solemnize (ceremonies, rites, etc.).

    Antonyms:
    ignore
  9. to note or inspect closely for an omen or sign of future events.


verb (used without object)

observes, present (3rd person singular) observed, past participle, past observing present participle
  1. to notice.

  2. to act as an observer.

  3. to remark or comment (usually followed by on orupon ).

observe British  
/ əbˈzɜːv /

verb

  1. (tr; may take a clause as object) to see; perceive; notice

    we have observed that you steal

  2. (when tr, may take a clause as object) to watch (something) carefully; pay attention to (something)

  3. to make observations of (something), esp scientific ones

  4. to make a comment or remark

    the speaker observed that times had changed

  5. (tr) to abide by, keep, or follow (a custom, tradition, law, holiday, etc)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

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

Derived Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

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.

Keep Reading on Vocabulary.com

Vocabulary lists containing observe

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.

See Examples For:

Cook said the Fed's rate-setting committee "can take its time" to observe data while deciding on interest rate adjustments.

From Barron's Jul. 15, 2026

"All we know is that it is embodied. We have no idea what we might observe and measure in our bodies to reveal it."

From Science Daily Jul. 14, 2026

With 11 patients on the ward, staffing levels meant a member of staff would have had to observe a patient roughly every 54 seconds.

From BBC Jul. 14, 2026

Areas that already do not observe daylight saving time would be able to stay on permanent standard time, according to the bill text.

From Los Angeles Times Jul. 14, 2026

“I have reconsidered my position. Clearly, a guidebook written by looking through a window simply will not work. Instead, I propose we go outdoors and observe the birds in their natural habitat, so to speak.”

From "The Unseen Guest" by Maryrose Wood

"I got what I wanted and it doesn't sit right," she observes, describing parties full of "big shots and barbies" whose empty talk makes her "ears bleed".

From BBC Jul. 18, 2026

To put the expected earnings growth in perspective, that would usually be associated with a profit increase seen as an economy recovering from recession, Evercore observes.

From MarketWatch Jul. 13, 2026

Szymanski observes that the vast majority of successful footballing nations share another common denominator: wealth.

From BBC Jul. 4, 2026

The analyst observes that sentiment has got even worse since the Australia-listed hearing-implant maker downgraded its FY 2026 guidance in April.

From The Wall Street Journal Jun. 30, 2026

The boy observes him, tall and solemn, twelve years older than the night he first crept in with his stone-eyed master.

From "Grendel" by John Gardner

He also observed that after months of heavy international outflows from Korea, this last week witnessed a $500 million inflow in an encouraging trend reversal.

From MarketWatch Jul. 17, 2026

But when he observed it swirling rapidly rather than spreading out as dry ice would, he dropped his guitar, jumped off stage and started running.

From BBC Jul. 16, 2026

“Rather than going around causing trouble, his comedy was about trying to prevent it,” the author and performer Trav S.D. observed in his book “Chain of Fools.”

From The Wall Street Journal Jul. 15, 2026

It is still unclear whether moderate chili pepper consumption carries the same risks observed among the heaviest consumers, or whether there is a threshold above which risk begins to increase.

From Science Daily Jul. 14, 2026

Oliver Wendell Holmes once observed that “a great man represents a strategic point in the campaign of history, and part of his greatness consists of his being there.”

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis

"Our goal is to move from observing associations to understanding causality," Vicinanza said.

From Science Daily Jul. 18, 2026

Dean Burnett says embarrassment is the awareness of other people observing you and "could find you lacking"

From BBC Jul. 18, 2026

McElwee has often pondered the downside of essentially treating himself like a human camera, observing the world rather than fully engaging in it.

From Los Angeles Times Jul. 16, 2026

Chief Executive He Xiaopeng said the company decided to offer the L03 in both battery-electric and extended-range versions after observing that charging infrastructure remains underdeveloped in many overseas markets, including parts of Mexico and Africa.

From The Wall Street Journal Jul. 16, 2026

The observatory was christened Uraniborg, after Urania, the Muse of astronomy, and over the years developed into a major scientific institution with observing galleries, library and studies.

From "The Scientists" by John Gribbin

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