Into one place; into a single thing; combined.
It has been raining four days together
Without intermission or interruption; continuously; uninterruptedly.
At the same time, in the same place; in close association or proximity.
In a relationship or partnership, for example a business relationship or a romantic partnership.
Coherent; well organized.
Without the ability to reason; unreasoning.
Not reasonable; going beyond what could be expected or asked for.