# barometer

/bɝˈɑmɪtɝ/ (US) · /bəɹˈɒmɪtɐ/ (UK)

Source: https://englishreference.com/word/barometer
Updated: 2026-08-27

## Senses

### 1. weather instrument

noun · CEFR C1 · Technical

a scientific tool used to measure air pressure, which helps people predict if the weather will change.

For teachers: an instrument used to measure atmospheric pressure, primarily for weather forecasting and determining altitude.

- The barometer in the hallway showed that the air pressure was dropping, so we expected rain.
- Meteorologists monitored the mercury barometer closely, noting the rapid fall in pressure that typically precedes a severe cyclonic storm.

Usage: a countable noun often used with the definite article in scientific contexts.

### 2. a social indicator

noun · CEFR C1 · Academic

something that shows how a situation is developing or how people are feeling.

For teachers: a figurative gauge or indicator that reflects changes in public opinion, social trends, or economic conditions.

- The number of new houses being built is a good barometer of the country's economy.
- Political analysts often view local election results as a reliable barometer of the national mood regarding the current administration's fiscal policies.

Usage: frequently used with 'of' to indicate the subject being measured, such as 'a barometer of public opinion'.

## Examples

- The barometer shows that the air pressure is falling.
- Economists often view consumer spending as a reliable barometer of the country's overall financial health.
- While the physical barometer indicated an approaching storm, the tense atmosphere in the boardroom served as a social barometer for the impending corporate restructuring.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.