observation

noun8

1. •
   the act of watching or looking with care at someone or something, to notice and learn things

   • The physics of elementary particles in the 20th century was distinguished by the observation of particles whose existence had been predicted by theorists sometimes decades earlier. — 2012
2. •
   An evaluation conducted through observing.

   • I need to do your observation before the end of the week.
3. •
   A regime under which a subject is routinely observed.
4. •
   A remark or comment.

   • That's a foolish observation. — 1591
5. •
   A judgement based on observing.
6. •
   The act of noting and recording some event; or the record of such noting.
7. •
   A realization of a random variable.
8. •
   Performance of what is prescribed; adherence in practice; observance.

   • We are to procure dispensation or leave to omit the observation of it in such circumstances. — 1651