establish
US /ɪˈstæblɪʃ/
・UK /ɪˈstæblɪʃ/
A2
verb
- To set or create something to last for a long time
- To use facts, evidence to show truth or clarity
other
- To start or create (an organization, a system, etc.) that is meant to last for a long time.
- To discover or prove the facts of a situation.
- To settle or place in a secure or permanent position.