observe >> /əbˈzərv/
Definition: [transitive verb] Notice or perceive (something) and register it as being significant.
Example: young people observe that decisions are made by others
Definition: [transitive verb] Make a remark.
Example: “It's chilly,” she observed
Definition: [transitive verb] Fulfill or comply with (a social, legal, ethical, or religious obligation)
Example: a tribunal must observe the principles of natural justice