What is another word for headache?

Common synonyms for headache include concern, worry, vexation.

What is the plural of headache?

The plural of headache is headaches.

/ˈhɛdeɪk/noun2 syllables

Headache means: something or someone that causes anxiety; a source of unhappiness.

noun, as in something or someone that causes anxiety; a source of unhappiness

noun, as in pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs

head ache, cephalalgia

also used for headache

bother, pain in the neck

Includes material from Wiktionary, CC BY-SA 4.0.

noun

something or someone that causes anxiety; a source of unhappiness“New York traffic is a constant concern”

pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs

Definitions from the Open English WordNet, CC BY 4.0.

The most commonly reported flu symptoms are fever, chills, sweating, asthenia, headache and nausea.gauravjiii
The onset of malaria is marked by nausea, vomiting, fever, chills, and headache._undertoad
Correct, one has a stomachache, the other has a headache.Adlib
If you have a headache, it would be better not to drink.CK
I have a bad headache now, so could we do this later?CK
Joking aside, you ought to see a doctor about your headache.JimBreen
At the worst possible time, my headache exploded.AlanF_US
Seriously, you should go to the doctor for your headache.SunnyMoon

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.

as a noun