Directory. If you have create rights at the directory level, you can create new objects in the directory such as new tables.
Table. If you have create rights at the table level, you can create new entries. (You cannot add new columns to an existing table regardless of what rights you have.)
Column. If you have create rights to a column, you can enter new data values in the fields of that column. You cannot create new columns.
Entry. If you have create rights to an entry, you can enter new data values in the fields of that row. (Entry level create rights do not permit you to create new rows.)