observation

[ ob-zur-vey-shuhn ]

noun

1. an act or instance of noticing or perceiving.
2. an act or instance of regarding attentively or watching.
3. the faculty or habit of observing or noticing.

   Synonyms: attention

4. notice:

   to escape a person's observation.

5. an act or instance of viewing or noting a fact or occurrence for some scientific or other special purpose:

   the observation of blood pressure under stress.

6. the information or record secured by such an act.
7. something that is learned in the course of observing things:

   My observation is that such clouds mean a storm.

8. a remark, comment, or statement based on what one has noticed or observed.

   Synonyms: opinion, pronouncement

9. the condition of being observed.
10. Navigation.
    1. the measurement of the altitude or azimuth of a heavenly body for navigational purposes.
    2. the information obtained by such a measurement.
11. Obsolete. observance, as of the law.

observation

/ ˌɒbzəˈveɪʃən /

noun

1. the act of observing or the state of being observed
2. a comment or remark
3. detailed examination of phenomena prior to analysis, diagnosis, or interpretation

   the patient was under observation

4. the facts learned from observing
5. See observance
   an obsolete word for observance
6. nautical
   1. a sight taken with an instrument to determine the position of an observer relative to that of a given heavenly body
   2. the data so taken

Derived Forms

• ˌobserˈvationally, adverb
• ˌobserˈvational, adjective

Other Words From

• nonob·ser·vation noun
• preob·ser·vation noun
• reob·ser·vation noun
• self-obser·vation noun

Word History and Origins

Origin of observation¹

First recorded in 1350–1400; Middle English, from Latin observātiōn-, stem of observātiō “attention, inspection, surveillance,” from observāt(us) “watched” (past participle of observāre “to watch, regard, attend to”; observe ) + -iō -ion

Synonym Study

See remark.

Example Sentences

Barack Obama was not the first Liberal to make this observation.

From The Daily Beast

Now, a new observation seems to show that black holes also behave according to their place in the cosmic web.

From The Daily Beast

In Alabama, an arrested 19-year-old shoplifter got gangrene and died naked on the floor of a “medical observation cell.”

From The Daily Beast

Third, the virus could not be found in sputum, further supporting the clear observation that airborne spread does not occur.

From The Daily Beast

Scientific observation, rather than being a place of respite from fear, itself has become something else to rail against.

From The Daily Beast

With Bacon, experientia does not always mean observation; and may mean either experience or experiment.

From Project Gutenberg

A delightful instance of this fell under my own observation, as I was walking on Hampstead Heath.

From Project Gutenberg

He, therefore, did as he said; made no further observation, but conducted himself to his young friend with grave distance.

From Project Gutenberg

Impersonation may be more easily achieved intellectually, requiring only keen observation and the power of imitation.

From Project Gutenberg

But the observation he thoughtlessly uttered in French seemed to excite the peasant's attention.

From Project Gutenberg

Related Words

• conclusion
• consideration
• examination
• experience
• information
• inspection
• investigation
• knowledge
• measurement
• note
• perception
• remark
• research
• review
• study
• surveillance
• view