Altogether (pronoun+adverb) means jointly; collectively at the same place or in the same time.
Usage note: All together is used only in sentences that can be rephrased so that all and together may be separated by other words.
- The guests arrived all together.
- All the guests arrived together.
- The old newspapers lay all together in a heap.
- All the old newspapers lay together in a heap.
- Sam was most happy when we were all together.
- Sam was most happy when we all were together.
- I stopped visiting her house altogether.
- We collected altogether $1000.
- Altogether it was great day.