[ ob-zur-vey-shuhn ]
/ ˌɒb zɜrˈveɪ ʃən /


Origin of observation

1350–1400; Middle English < Latin observātiōn- (stem of observātiō), equivalent to observāt(us) (past participle of observāre to observe) + -iōn- -ion

Related forms

non·ob·ser·va·tion, nounpre·ob·ser·va·tion, nounre·ob·ser·va·tion, nounself-ob·ser·va·tion, noun

Can be confused

observance observation

Synonym study

8. See remark.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for observation

British Dictionary definitions for observation


/ (ˌɒbzəˈveɪʃən) /


the act of observing or the state of being observed
a comment or remark
detailed examination of phenomena prior to analysis, diagnosis, or interpretationthe patient was under observation
the facts learned from observing
an obsolete word for observance
  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

observational, adjectiveobservationally, adverb
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