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observe

/əbˈzɜːv/
IELTSAcademic
verb
  1. 1.

    To watch or notice something carefully. It often means paying close attention to details or behavior.

    • Scientists observe the experiment closely.
    • She observed his reaction quietly.
  2. 2.

    To see or comment on something formally. It is often used in meetings, reports, or polite speech.

    • He observed that the results were surprising.
    • The teacher observed that the class was improving.
  3. 3.

    To follow a rule, law, custom, or holiday. This use is common in formal writing.

    • We observe safety rules at work.
    • Many families observe Diwali at home.

Adinary Nuance

Observe is more formal than watch or look at. Use observe when you mean careful noticing, especially in writing, science, or official speech. It can also mean to state something politely or to follow a rule or custom. Compared with notice, observe suggests more deliberate attention.

In other languages

Vietnamese
quan sát
Spanish
observar
Chinese
观察
Japanese
観察する
Korean
관찰하다

Etymology

Observe comes from Latin observare, meaning 'watch' or 'pay attention to'. It entered English through Old French in the Middle Ages.

Common phrases

observe carefullyobserve a ruleobserve a holidayobserve from a distance

Synonyms

Related words

Frequently asked questions

Is observe formal or informal?
Observe is usually formal or semi-formal. It sounds natural in academic, scientific, and official writing.
What is the difference between observe and notice?
Notice means you become aware of something. Observe suggests more careful and deliberate attention.
Can observe mean follow a rule?
Yes. You can observe a rule, law, or custom when you obey or follow it.
How do I use observe in a sentence?
You can say, “I observed the meeting closely,” or “We observe this festival every year.”