verb
establish
ih-STAB-lish/ɪˈstæblɪʃ/
To put something on a firm or recognized footing.
The two gardeners establish a community garden by planting its first raised bed.

Etymology
Latin stabilire meant “make stable.” The image of making something firm connects setting up an institution with proving a claim: each gives something a secure foundation.
In context
it may be hard to get a one-on-one with your manager and voice your feelings to them. Regardless of your situation, it’s important to establish a line of open communication with your boss
More examples
- The school established clear rules for phone use.
- Years of careful work have established her as a trusted expert.
- The tests establish whether the water is safe to drink.
Forms
establish · establishes · established · establishing
establishment noun — The act of founding or firmly setting up.