observation-n; 4 Senses

Sense Number 1: watching

Commentary: OBSERVATION[+event] observance, notice - the act of observing or noticing or paying attention

Examples:
He escaped the observation of the police.
The principal's observation of the class lasted only ten minutes.

Mappings:
WordNet 2.0 Sense Numbers: 2 4

Sense Number 2: making notes

Commentary: OBSERVATION[+event] the act of making and recording a measurement

Examples:
Radio Observations of Comet Shoemaker-Levy have shown an increase in radio emissions.

Mappings:
WordNet 2.0 Sense Numbers: 1

Sense Number 3: facts

Commentary: facts learned by observing

Examples:
He reported his observations to the mayor.
Scientific observations while not proven are often accepted as fact.

Mappings:
WordNet 2.0 Sense Numbers: 4

Sense Number 4: remark

Commentary: reflection, reflexion - a remark expressing careful consideration

Examples:
Please keep your observations to yourself.

Mappings:
WordNet 2.0 Sense Numbers: 5