fever

fever /ˈfiːvɚ/ noun
plural fevers
fever
/ˈfiːvɚ/
noun
plural fevers
Britannica Dictionary definition of FEVER
1 
a  : a body temperature that is higher than normal
[count]
[noncount]
b  [count] : a disease that causes an increase in body temperature — see also hay fever, rheumatic fever, scarlet fever, yellow fever
2 
[singular]
a  : a state of excited emotion or activity
— see also cabin fever, spring fever
b  : a state of great enthusiasm or interest