1. (adj)all(a) quantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class "we sat up all night"; "ate all the food"; "all men are mortal"; "all parties are welcome"
2. (adj)all completely given to or absorbed by "became all attention"
3. (adverb)wholly, entirely, completely, totally, all, altogether, whole to a complete degree or to the full or entireextent (`whole' is often used informally for `wholly') "he was wholly convinced"; "entirely satisfied with the meal"; "it was completely different from what we expected"; "was completely at fault"; "a totally new situation"; "the directions were all wrong"; "it was not altogether her fault"; "an altogether new approach"; "a whole new idea"