defensive area; area one is supposed to defend
Sports term for the area a player is responsible for defending. Also used metaphorically for one's area of responsibility.
His defensive range is wide.
Please understand the defensive area for this position.
field of expertise; scope of knowledge; range of interests
Refers to the breadth of one's knowledge, skills, or conversational topics. Often used when someone is knowledgeable about many things.
He has a wide range of knowledge, from history to science.
My area of expertise is only IT-related.
one's type; kind of person one is attracted to
Informal, often used in romantic contexts to describe the type of person one finds attractive.
She has a wide range of types she's attracted to, so she can date various kinds of people.
That actor is not my type.
専門分野 is a more formal term for one's specialized field, while 守備範囲 can be used casually for one's range of knowledge or interests.
タイプ is a direct loanword for 'type' and is more common in casual romantic contexts, but 守備範囲 adds a nuance of 'range' or 'scope' of attraction.
Compound of 守備 (defense) and 範囲 (range, scope). Originally a sports term, it has extended to mean one's area of expertise or romantic preferences.