Definition of observe in English:

observe

Syllabification: ob·serve
Pronunciation: /əbˈzərv
 
/

verb

[with object]
1Notice or perceive (something) and register it as being significant: [with clause]: young people observe that decisions are made by others
More example sentences
  • Arrow of time refers to the capability of distinguishing previous events from subsequent events by observing significant differences between the two events.
  • At this diminished rate of novel sequence discovery, one can expect to observe a significant gain from enrichment procedures.
  • Fisher did not report observing any significant changes in the number of abstinent students in their university-based study.
Synonyms
1.1Watch (someone or something) carefully and attentively: Rob stood in the hallway, where he could observe the happenings on the street
More example sentences
  • As we filled our plates with warm food, I watched my family observe him carefully, wondering what it was in him that made me like him.
  • You are to watch them carefully and observe them.
  • Some quite inquisitive - and even proprietorial - individuals came close, begging for food and carefully observing us whilst we worked in the water.
Synonyms
watch, look at, eye, contemplate, view, witness, survey, regard, keep an eye on, scrutinize, keep under observation, keep (a) watch on, keep under surveillance, surveil, monitor, check out, keep a weather eye on, keep tabs on, spy on
informal eyeball
1.2Take note of or detect (something) in the course of a scientific study: the behavior observed in groups of chimpanzees
More example sentences
  • Yet we do know from animal behaviour studies that observing animals in zoos and laboratories can be very different from how they behave in their natural environment.
  • In another study, a scientists observed single contrails produced by military jets that were allowed to fly during those days.
  • No flocks consisting of more than three mated pairs were observed in the study area over the course of the two-year study period.
1.3 [reporting verb] Make a remark or comment: [with direct speech]: “It’s chilly,” she observed [with clause]: a stockbroker once observed that dealers live and work in hell
More example sentences
  • In his concluding remarks Justice Ahmadi observed that government officials had to follow statute rather than waiting for ministers' orders.
  • In fact, one commentator has observed that we live in the ‘Untied States of America.’
  • He observes that students, once out of college, find it extremely difficult hunting jobs or pursuing further studies.
Synonyms
remark, comment, say, mention, note, declare, announce, state, pronounce
formal opine
2Fulfill or comply with (a social, legal, ethical, or religious obligation): a tribunal must observe the principles of natural justice
More example sentences
  • Human rights and peremptory norms of international law must be observed, and legal obligations toward third states must be respected.
  • At this early stage, still some time before its product has received marketing clearance or approval, the company must ensure that it observes the legal and regulatory restrictions on what can be said about its device.
  • Devotees must know the position of the sun when observing their religious rituals, and their temples contain an inner sanctum in which burns a perpetual fire.
Synonyms
comply with, abide by, keep, obey, adhere to, heed, honor, be heedful of, respect, follow, consent to, acquiesce in, accept, fulfill
2.1Maintain (silence) in compliance with a rule or custom, or temporarily as a mark of respect: a minute’s silence will be observed
More example sentences
  • Before the game began, a vote of sympathy was passed and a minutes silence was observed as a mark of respect to the late Mrs Fierson who died in Liverpool, England.
  • A minute's silence was observed as a mark of respect on the death of Alfred, brother of Walter.
  • As a mark of respect Carlow County Council observed a minute's silence at their Monday meeting this week.
2.2Perform or take part in (a rite or ceremony): relations gather to observe the funeral rites
More example sentences
  • Muslim rites are generally observed for such ceremonies, which are accompanied by feasting and the signing of the marital agreement by bride and groom.
  • Nineteenth-and early-twentieth-century travelers and missionaries observed Jengu rites along the coast.
  • Jai Krishna assured them all rites had been faithfully observed.
2.3Celebrate or acknowledge (an anniversary): many observed the one-year anniversary of the flood
More example sentences
  • But the Holy Prophet, or his noble companions never observed the birthday or anniversary of any of them.
  • In observing the 65th anniversary of his birth, we celebrate Vadim's life.
  • Racetracks across the United States planned to observe the one-year anniversary of the attacks on the World Trade Center and the Pentagon on Wednesday.
Synonyms
commemorate, mark, keep, memorialize, solemnize, remember, recognize, celebrate

Origin

late Middle English (sense 2): from Old French observer, from Latin observare 'to watch', from ob- 'toward' + servare 'attend to, look at'.

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