observe

US /əbˈzɝːv/
UK /əbˈzɝːv/
"observe" picture
1.

to watch carefully the way something happens or the way someone does something, especially in order to learn more about it

:
The police observed the suspect's movements.
Scientists observe how animals behave in their natural habitat.
2.

to make a remark about something

:
She observed that it was getting late.
He observed that the economy was improving.
3.

to obey a law, rule, or custom

:
You must observe the speed limit.
They observe strict religious traditions.
4.

to celebrate or acknowledge a holiday or special occasion

:
Many cultures observe the New Year with special rituals.
The company will observe the national holiday.