The adjective accessible means something that can be easily gotten, accessed or approached. It also means a person who is friendly and easy to talk to.
Synonyms are available, obtainable, easygoing, or reachable
The word origins from Late Latin accessibilis, verbal adjective from Latin accessus meaning “a coming near, an approach, an entrance” and accedere meaning “approach, go to, come near, enter upon”.
The office is accessible since everyone has a key.
The room is only accessible for authorized persons.
The application form is accessible online.