establish (oneself, someone, or something) as (something)

establish (oneself, someone, or something) as (something)

To confirm oneself, someone, or something's role or reputation as being a certain thing or having a certain status. That merger established the company as the biggest on the East Coast. I think you need to establish yourself as a tough teacher early on so that the kids actually listen to you.
See also: establish
Farlex Dictionary of Idioms.

establish someone or something as someone or something

to validate or confirm someone or something as someone or something. As soon as we establish her as a viable candidate, we will launch the publicity campaign. She established herself as an authority on rare books.
See also: establish
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • establish
  • establish as
  • certain
  • treat (someone or something) like (someone or something else)
  • treat like
  • a dead cert
  • cert
  • (somewhere or something) or bust
  • or bust
  • be a dead cert