Read the dictionary definition of all. All definitions for this word.
1. completely given to or absorbed by
1. became all attention
2. (quantifier) used with either mass or count nouns to indicate the whole number or amount of or every one of a class
1. we sat up all night
2. ate all the food
3. all men are mortal
4. all parties are welcome
3. to a complete degree or to the full or entire extent (`whole' is often used informally for `wholly')
1. he was wholly convinced
2. entirely satisfied with the meal
3. it was completely different from what we expected
4. was completely at fault
5. a totally new situation
6. the directions were all wrong
7. it was not altogether her fault
8. an altogether new approach
9. a whole new idea
10. she felt right at home
11. he fell right into the trap
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Merriam-Webster definition of all