a. The act of observing: observations of a rare bird.
b. The power or faculty of observing.
c. The fact of being observed: kept the suspect under observation.
a. The act or process of perceiving something, such as a phenomenon, often by means of an instrument, and making a record of the resulting information.
b. The result or record of such an act or process: a meteorological observation.
3. An inference, judgment, or remark that is made by observing: made some sharp observations about the movie.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.