Observation Collected Based Noun ˌɒbzəˈveɪʃn ˌɑːbzərˈveɪʃn Information Direct

• most information was collected by direct observation of the animals' behaviour.
• results based on scientific observations
• we managed to escape observation (= we were not seen).
• the suspect is being kept under observation (= watched closely by the police).

observation

1. the act of watching somebody/something carefully for a period of time, especially to learn something
• Most information was collected by direct observation of the animals' behaviour.
• results based on scientific observations
• We managed to escape observation (= we were not seen).
• The suspect is being kept under observation (= watched closely by the police).
• She has outstanding powers of observation (= the ability to notice things around her).
• an observation post/tower (= a place from where somebody, especially an enemy, can be watched)
• an observation deck (= a room or platform at the top of a tall building which provides views of the surrounding area)
• his close observations of animal life in its natural setting

Extra Examples

• She was admitted to hospital for observation.
• The police have had him under observation for several weeks.
• There's a lot to be learned from simple observation.
2. a comment, especially based on something you have seen, heard or read
• SYNONYM remark
  https://www.oxfordlearnersdictionaries.com/definition/english/remark_2
• May I make a personal observation?
• He began by making a few general observations about the report.
• She has some interesting observations on possible future developments.
• her witty observations on life

Word Origin

• late Middle English (in the sense ‘respectful adherence to the requirements of rules or ritual’): from Latin observatio(n-), from the verb observare ‘to watch’, from ob- ‘towards’ + servare ‘attend to, look at’.