English Reference
Noun

rollout

n. countable
B2 Upper Intermediate US /ˈɹoʊˌɫaʊt/ roll·out UK spelling rollouts Aviation

n.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.


SIMPLE

The company planned a global rollout for its new phone.

CONTEXTUAL

The government announced a phased rollout of the new digital tax system to help small businesses adapt.

COMPLEX

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.

Usage

Often used in business and technology contexts; frequently appears as a compound noun or with 'of'.

The testing rollout follows a 12-month trial which ended in February and which saw 1,480 drug samples tested across 12 NSW music festivals.

The Guardian· 1 Sept 2026

The seven-minute tests will be available at participating pharmacies as part of a national rollout to spot “ticking timebombs” earlier.

The Guardian· 31 Aug 2026
This entry
Level B2 · Upper Intermediate
Frequency Occasional
Updated