Etymology: Middle English all, al, from Old English eall; akin to Old High German all all
Date: before 12th century
a. the whole amount, quantity, or extent of <needed all the courage they had> <sat up all night> b. as much as possible <spoke in all seriousness> 2. every member or individual component of <all men will go> <all five children were present> 3. the whole number or sum of <all the angles of a triangle are equal to two right angles> 4. every <all manner of hardship> 5. any whatever <beyond all doubt> 6. nothing but ; only: a. completely taken up with, given to, or absorbed by <became all attention> b. having or seeming to have (some physical feature) in conspicuous excess or prominence <all legs> c. paying full attention with <all ears> 7. dialect used up ; entirely consumed — used especially of food and drink 8. being more than one person or thing <who all is coming> Synonyms: see whole II. adverb Date: before 12th century 1. a. wholly, quite <sat all alone> — often used as an intensive <all out of proportion> <all over the yard> <it wasn't all that funny> b. selected as the best (as at a sport) within an area or organization — used in combination <all-league halfback> 2. obsolete only, exclusively 3. archaic just 4. so much <all the better for it> 5. for each side ; apiece <the score is two all> III. pronoun, singular or plural in construction Date: before 12th century 1. a. the whole number, quantity, or amount ; totality <all that I have> <all of us> <all of the books> b. — used in such phrases as for all I know, for all I care, and for all the good it does to indicate a lack of knowledge, interest, or effectiveness 2. everybody, everything <gave equal attention to all> <that is all> IV. noun Date: 1593 the whole of one's possessions, resources, or energy <gave his all for the cause>
New Collegiate Dictionary. 2001.