An altogether is everything considered together or as a whole.
When we talk about something being "altogether," we usually mean that it's all part of one thing, rather than separate parts. For example, if you're planning a party and you need to buy food, decorations, and entertainment, the total amount of money spent on these things would be your costs altogether. This means you add up everything – not just one or two items, but the whole lot. It's like counting all the beans in a big jar instead of just looking at a few that are visible on top.
Without exception; wholly; completely.
