Alphabet Filter:


Definition of observation:

  1. Hence: An expression of an opinion or judgment upon what one has observed; a remark.
  2. Performance of what is prescribed; adherence in practice; observance.
  3. Specifically, the act of measuring, with suitable instruments, some magnitude, as the time of an occultation, with a clock; the right ascension of a star, with a transit instrument and clock; the sun's altitude, or the distance of the moon from a star, with a sextant; the temperature, with a thermometer, etc.
  4. The act of recognizing and noting some fact or occurrence in nature, as an aurora, a corona, or the structure of an animal.
  5. The act or the faculty of observing or taking notice; the act of seeing, or of fixing the mind upon, anything.
  6. The information so acquired.
  7. The result of an act, or of acts, of observing; view; reflection; conclusion; judgment.


remark, card, words, comment, poster, note, utterance, regard, annotation, measurement, rumination, see, probe, detection, reflectivity, acumen, thoughtfulness, ascertainment, notification, overlook, estimation, placard, musing, observance, watching, obiter dictum, mirror image, knowledge, research, watch, ceremonial occasion, heed, notice, pronouncement, cognizance, indifference, awareness, ceremony, check, bill, mark, ceremonial, honoring, obstruction, view, reflection, expression, investigation, posting, espial, reflexion, contemplation, noticing.

Usage examples: