definition of
observation

[1] #1 observation n. the act of making and recording a measurement. wn

[2] #2 observation n. [observance, watching] the act of observing; taking a patient look. wn

[3] #3 observation n. [reflection, reflexion] a remark expressing careful consideration. wn

[4] #4 observation n. facts learned by observing; "he reported his observations to the mayor". wn

[5] #5 observation n. [notice, observance] the act of noticing or paying attention; "he escaped the notice of the police". wn