run a fever
Be abnormally hot
To run a fever is to have an elevated body temperature, typically from illness.
The phrase emphasizes duration—the fever persists rather than spikes momentarily: She's been running a fever since yesterday.
Also run a temperature.
- pyrexiaElevated body temperature
- illnessState of poor health
- chillsShivering spells from illness
- temperatureMeasured heat intensity
- burning upIntensely overheated
antipyretics · virus · flu · infection · shivering · immune response · headache · thermoregulation · sweating · cool compress · hydration · rest · under the weather · call in sick · sick day · muscle aches · inflammation · body aches