rollout
n. countablen. the official start of a new product, service, or system. It often happens in stages so that people can get used to it slowly.
n. the official launch or introduction of a new product, service, or policy. Often involves a phased implementation across different regions or demographics.
The company planned a global rollout for its new phone.
The government announced a phased rollout of the new digital tax system to help small businesses adapt.
Despite initial technical glitches, the nationwide rollout of the high-speed rail network was completed ahead of schedule, significantly reducing travel times between major industrial hubs.
Often used in business and technology contexts; frequently appears as a compound noun or with 'of'.