brownout
C1Technical, journalistic, formal
Definition
Meaning
A partial reduction in electrical power, typically resulting in dimmed lights, as opposed to a complete blackout.
A temporary reduction in power, capability, or activity in any system (e.g., computing, business operations).
Linguistics
Semantic Notes
Primarily refers to a controlled or unintentional drop in voltage, not a complete loss of power. Often used metaphorically for reductions in other services or activities.
Dialectal Variation
British vs American Usage
Differences
The term is used in both varieties, but 'power cut' or 'partial power cut' is a more common everyday alternative in British English.
Connotations
In both, it implies a managed or less severe reduction than a blackout. In technical contexts, the term is standard.
Frequency
More frequent in American English, especially in news reports about grid stability. Less common in casual British conversation.
Vocabulary
Collocations
Grammar
Valency Patterns
The city experienced a brownout.Authorities imposed a brownout to conserve energy.A brownout was caused by the heatwave.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None directly associated; the term itself is technical.”
Usage
Context Usage
Business
The factory's production slowed due to a scheduled brownout.
Academic
The study analysed the economic impact of rolling brownouts in developing nations.
Everyday
The lights are really dim—I think we're having a brownout.
Technical
The grid operator initiated a brownout to prevent a cascading failure.
Examples
By Part of Speech
verb
British English
- The grid may brownout certain suburbs during peak demand.
American English
- The utility company will brownout the downtown area for two hours.
adverb
British English
- Not standardly used as an adverb.
American English
- Not standardly used as an adverb.
adjective
British English
- The brownout period affected several neighbourhoods.
American English
- We are under brownout conditions until 8 PM.
Examples
By CEFR Level
- The lights went very dim in the brownout.
- Our street had a brownout last night, so the TV kept turning off.
Learning
Memory Aids
Mnemonic
Think of the lights turning BROWN (dim/dull) instead of going completely BLACK (out).
Conceptual Metaphor
POWER IS A FLUID/BRIGHTNESS; a reduction is a dimming or lowering of level.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating as 'коричневое отключение'. The correct equivalent is 'частичное отключение электроэнергии' or 'броунаут' (technical loan).
- Do not confuse with 'blackout' ('полное отключение').
Common Mistakes
- Using 'brownout' to mean a complete loss of power (that's a 'blackout').
- Misspelling as 'brown out' (it is a closed compound noun).
Practice
Quiz
What is the key difference between a brownout and a blackout?
FAQ
Frequently Asked Questions
Yes, prolonged or severe brownouts (low voltage) can damage motors and sensitive electronics.
Yes, in technical and journalistic contexts (e.g., 'The utility will brownout the industrial sector').
A series of temporary, planned brownouts that rotate through different areas to manage overall power demand.
Only metaphorically; it suggests dimming lights to a brownish hue, as opposed to the 'black' of a full outage.