used of a group whose members acted or were acted upon collectively and when `all' and `together' can be separated by other words; "they were herded all together"; "they were all herded together"; "the books lay all together in a heap"; "the books all lay together..."
all at the same time; "Let's say `Yes!' all at once"
(Greek mythology) 7 daughters of Atlas and half-sisters of the Pleiades; they nurtured the infant Dionysus and Zeus placed them among the stars as a reward