headache

noun

head·​ache ˈhed-ˌāk How to pronounce headache (audio)
Synonyms of headachenext
1
: pain in the head
2
: a vexatious or baffling situation or problem
… meetings had become a giant headache.Franklin Foer
headachy adjective
or less commonly headachey

Examples of headache in a Sentence

I'm starting to get a headache. The symptoms include fever and headache. The city's biggest headache is traffic. Managing your finances can be a real headache.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Dolgin says if more people trade down to the ad tier (something Netflix execs have said is not yet happening), that could bring other headaches. Dade Hayes, Deadline, 27 Mar. 2026 What Becker once considered a sturdy government job has transformed into a headache as the recent partial government shutdown, which cut off pay to the Department of Homeland Security and by extension Transportation Security Administration workers, stretches into its 40th day. Sacbee.com, 27 Mar. 2026 One of the biggest headaches any launch with a hatch deals with is known as FOD, or foreign-object debris, which could be as small as a piece of hair trapped in the seal where the hatch closes. Richard Tribou, The Orlando Sentinel, 26 Mar. 2026 Even brief moments of warmth or empathy can help reset our nervous system and reduce physical symptoms of stress, like muscle tension or headaches. Chris John Amorosino, Hartford Courant, 26 Mar. 2026 See All Example Sentences for headache

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of headache was before the 12th century

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Cite this Entry

“Headache.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/headache. Accessed 29 Mar. 2026.

Kids Definition

headache

noun
head·​ache ˈhed-ˌāk How to pronounce headache (audio)
1
: pain in the head
2
: an annoying or baffling situation or problem
headachy adjective

Medical Definition

headache

noun
head·​ache ˈhed-ˌāk How to pronounce headache (audio)
: pain in the head

called also cephalalgia

headachy adjective

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