Broaching

2broachfunction: verb date: 15th centurytransitive verb 1 a : to pierce (as a cask) in order to draw the contents; also : to open for the first time b : to open up or break into (as a mine or stores)2 : to shape or enlarge (a hole) with a broach3 a : to make known for the first time b : to open up (a subject) for discussionintransitive verb : to break the surface from belowsynonyms see express— broach;er noun