say-so
nounUK /ˈseɪ səʊ/
US /ˈseɪ soʊ/
The power to decide something or tell others what to do.
You can't just take the ball without your teacher's say-so.
OTHER MEANINGS
2. A person's statement or opinion that is not proven.
Don't believe it just on his say-so.
3. An official statement giving someone permission to do something.
We need the manager's say-so before we open the store.
4. The right to give orders or make final decisions.
The coach has the final say-so on who plays.