B1
a collection of things kept in a container for a particular use
Dictionary examples:
I got a 'Become a Millionaire' kit, but it's just an empty box. (0.0)
I bought a 'Learn to Cook' kit, but it only had takeout menus. (0.0)
I bought a 'Learn a New Language' kit, but it's all in gibberish. (0.0)
a first-aid/tool kit (42.1)