Co-op and Office tower

Co-op noun - A jointly owned commercial enterprise (usually organized by farmers or consumers) that produces and distributes goods and services and is run for the benefit of its owners.

Office tower and co-op are semantically related. In some cases you can use "Office tower" instead a noun phrase "Co-op".

Co-op and office tower are semantically related. You can use "Co-op" instead a noun phrase "Office tower".