S: (adv) concurrently, at the same time (overlapping in duration) "concurrently with the conference an exhibition of things associated with Rutherford was held"; "going to school and holding a job at the same time"
S: (adv) however, nevertheless, withal, still, yet, all the same, even so, nonetheless, notwithstanding, at the same time (despite anything to the contrary (usually preceding a concession)) "although I'm a little afraid, however I'd like to try it"; "while we disliked each other, nevertheless we agreed"; "he was a stern yet fair master"; "granted that it is dangerous, all the same I still want to go"