noun, noun or participle which takes 'suru'
door-to-door visit; door-to-door canvassing
Used for visiting each house in an area, often for political campaigning, sales, surveys, or information dissemination. Can be used as a noun or with する.
選挙前に候補者が戸別訪問を行った。
The candidate conducted door-to-door visits before the election.
警察が近
The police went door-to-door in the neighborhood to gather information.