1. (

• observation ,
• observance ,
• watching

) the act of observing; taking a patient look ;

2. (

• ceremony ,
• ceremonial ,
• ceremonial_occasion ,
• observance ,

) a formal event performed on a special occasion; "a ceremony commemorating Pearl Harbor" ;

3. (

• notice ,
• observation ,
• observance

) the act of noticing or paying attention; "he escaped the notice of the police" ;

4. (

• honoring ,
• observance ,

) conformity with law or custom or practice etc. ;