Main entry: observance, observation, watching
Definition: the act of observing; taking a patient look
Main entry: honoring, observance
Definition: conformity with law or custom or practice etc.
Main entry: notice, observance, observation
Definition: the act of noticing or paying attention
Usage: he escaped the notice of the police
Main entry: ceremonial, ceremonial occasion, ceremony, observance
Definition: a formal event performed on a special occasion
Usage: a ceremony commemorating Pearl Harbor