back-to-back

adjective
1
following one after another in a continuous series
پشت سر هم, متوالی, به دنبال هم, پیاپی
see also back to back(2)
2
built in a row in which the houses share walls with the houses on each side and behind
پشت‌به‌پشت, دیواربه‌دیوار, همجوار, چسبیده
They lived in a tiny back-to-back terraced house.
noun
1
sports games that are played on consecutive days (= with no days in between)
دو مسابقه متوالی, پیاپی, پشت سر هم, متوالی, پی‌درپی
2
a house in a row of houses that share walls with the houses on each side and behind
خانه‌های متصل, خانه‌های ردیفی
back-to-backs built for the poor in the nineteenth century