Question

how will you define competence?

Answer 1

You should ask this in English or writing but:
The same way the dictionary does: competence |ˈkämpətəns| (also competency |-tənsē|)
noun
1 the ability to do something successfully or efficiently : the players displayed varying degrees of competence.
• the scope of a person's or group's knowledge or ability : the music is within the competence of an average choir.
• a skill or ability.
• the legal authority of a court or other body to deal with a particular matter : the court's competence has been accepted to cover these matters.
• the ability of a criminal defendant to stand trial, as gauged by their mental ability to understand the proceedings and to assist defense lawyers.