ˈroll-out BrE AmE noun [uncountable and countable]
an occasion when a new product is made available for people to buy or use SYN launch :
Sun had to cancel the intended roll-out of the 514 model.
ROLL-OUT
Meaning of ROLL-OUT in English
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012