Noun

• S: (n) observation, observance, watching (the act of observing; taking a patient look)
• direct hyponym / full hyponym
• S: (n) monitoring (the act of observing something (and sometimes keeping a record of it)) "the monitoring of enemy communications plays an important role in war times"
• S: (n) sighting (the act of observing) "several sightings of enemy troops were reported"
• S: (n) landfall (the first sighting of land from the sea after a voyage (or flight over water))
• S: (n) stargazing (observation of the stars)
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• S: (n) ceremony, ceremonial, ceremonial occasion, observance (a formal event performed on a special occasion) "a ceremony commemorating Pearl Harbor"
• S: (n) notice, observation, observance (the act of noticing or paying attention) "he escaped the notice of the police"
• S: (n) honoring, observance (conformity with law or custom or practice etc.)