Altogether vs All Together
It's a phrase meaning "everyone or everything in the group".
• We all together gathered in the garden for the graduation ceremony.
• The teacher wanted us to solve the problem all together collectively.
• It’s time for us to work all together to prevent the spread of the disease.
It's an adverb meaning "wholly, completely".
• The movie was altogether terrifying.
• What he said was altogether ridiculous.
• The total amount I spent on my vacation was more than a thousand dollars altogether.