The Oxford Thesaurus An A-Z Dictionary of Synonyms - observationn.

1) watching, examination, scrutiny, inspection, viewing, survey, surveillance; notice, discovery, attention, awareness: The police put the house under 24-hour observation. The smuggled weapon escaped the guard's observation. 2) comment, remark, note, reflection, opinion, sentiment, point of view, impression, feeling, commentary, criticism; utterance, word, announcement, pronouncement, proclamation, declaration: She made a number of trenchant observations concerning life in Britain today.