1back–to–back adjective
1 : facing in opposite directions and often touching at the back
▪ back-to-back seats 2 : coming one after another in time
▪ back-to-back victories ▪ back-to-back appointments — see also back to back at 1back
▪ back-to-back seats
▪ back-to-back victories ▪ back-to-back appointments — see also back to back at 1back
— back to back adverb
▪ They were standing back to back.
▪ They were standing back to back.
