barometer

/bəˈrɑmətər/
noun
  1. An instrument that measures air pressure, used to predict weather changes.
    • Before going sailing, he checked the barometer to see if the weather would be safe.
    • The old barometer on the wall showed that the pressure was rising steadily.
    • The barometer is falling, which means a storm might be coming.
  2. Something that indicates or measures changes in a situation, opinion, or trend.
    • The number of tourists visiting the city is a good barometer of its popularity.
    • Her mood is a reliable barometer of how the team is feeling about the project.
    • Stock market performance is often seen as a barometer of economic health.
What does "barometer" mean? | whatsthatwordmean | whatsthatwordmean