as a body

altogether

all in all all together as a group as a whole as one bodily by and large ensemble generally in a body in a group in a mass jointly on the whole together

one at a time singly

absolutely altogether as a group collectively completely en masse entirely fully wholly

all at once as a group as a whole as one collectively communally cooperatively en bloc ensemble in a group in chorus in unison jointly together unanimously unitedly wholly with one voice

altogether

all at once as a group as a whole as one at once en masse in concert