observation

From Wiktionary

observation is part of the Basic English 850.

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[change] Noun

Singular observation

Plural observations

1. (uncountable) Observation is the act of carefully seeing things that happen.

   To learn, you must be good at observation.

2. (countable) An observation is something someone saw, heard etc.

   In science, we record our observations so we can think about them later.

[change] Related words

• observe
• observer