outage
Word family
Synonym discussion
Sense: noun/1
All four words describe a break in normal functioning, but they differ in scope and context. Blackout is the narrowest term, used almost exclusively for a complete loss of electrical power over a large area — a storm can cause a city-wide blackout, but you would not describe a five-minute internet glitch as a blackout. Interruption is the most general and neutral, applying to anything from a conversation to a broadcast signal; it does not carry the sense of inconvenience that disruption implies. Disruption adds the idea that the break causes trouble or confusion — an airline disruption delays travellers, while a power outage may merely be an interruption if the backup generator kicks in immediately. Downtime is technical and usually refers to planned or unplanned periods when a computer system or machine is not operating. For everyday talk about utilities, outage and blackout are the most natural choices; for general or abstract breaks, interruption fits better.
Common collocations
Phrases
- power outage
- internet outage
- network outage
- service outage
- planned outage
- widespread outage
Etymology
The word 'outage' was formed in English by combining 'out' (meaning 'away, not in operation') with the suffix '-age', following the pattern of similar words like 'breakage' and 'shortage'. It first appeared in the 19th century, originally referring to the amount of a product — especially whiskey or oil — that was lost by leaking during transportation or storage. The modern meaning of 'a period when a service, especially electricity, is not available' came into use in the early 20th century as electrical power grids spread across cities and homes.
First known use
1851
1851, in the meaning defined at sense 1