This is the 6525th most frequent Portuguese word.
encina
"Encina" is not a standard Portuguese word; it may be a misspelling. If referring to "ensina," it means "teaches."
The word 'encina' here is the third person singular present tense form of the verb 'ensinar' (to teach), denoting the subject is teaching.
Ela encina os alunos com dedicação.
She teaches the students with dedication.
The word 'encina' in this sentence describes a passive construction where the teaching action is impersonal.
Encina-se o uso correto das ferramentas na oficina.
The correct use of tools is taught in the workshop.
The word 'encina' here again represents the teaching action in a question format referring to a specific person who performs the action.