What is the meaning of Observation?

The act of observing, and the fact of being observed (see observance)

The act of noting and recording some event; or the record of such noting.

A remark or comment.

A judgement based on observing.

Performance of what is prescribed; adherence in practice; observance.

A regime under which a subject is routinely observed.

Philosophically as: the phenomenal presence of human being existence.

A realization of a random variable.

observation (careful or controlled attention or consideration)

observation (the result of such attention or consideration)

observation (process of detached, objective examination)

observation (the result of one of the above-described actions expressed in or rendered into words for the purpose of dissemination)

observance of (adherence or conformity to) rules, conventions, laws, etc.

observance (performance) of religious rituals, customs, traditions, etc.

observation (something that has been observed)

observation (act or process of observing)

observation (regime under which a subject is routinely observed)

Source: wiktionary.org