Adverbs

(r)all together, all at onceall at the same time“Let's say `Yes!' all at once”
(r)all togetherused 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...”