Adolescence /ˌæd

establish /ɪˈstæb.lɪʃ/ verb ACCEPT
2. [ T ] to cause to be accepted in or familiar with a place, position, etc
His reputation for carelessness was established long before the latest problems arose.
He's established himself as a dependable source of information.
After three months we were well established in/at our new house/new jobs.
3. establish yourself formal
to be in a successful position over a long period of time
He has established himself as the leading candidate in the election.
establish /ɪˈstæb.lɪʃ/ verb DISCOVER
4. [ T ] formal to discover or get proof of something
Before we take any action we must establish the facts/truth.
[ + question word ] Can you establish wh at time she left home/ wh ether she has left home.
[ + ( that ) ] We have established (that) she was born in 1900.