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Definition of headache
headache
/ˈhɛdeɪk/
head · ache
Plural:headaches
•Adjective:headachy
headache Lexical Profile
CEFR
A2
Grade
2
Tier
1
Usage
Top 5k
Syllables
2
headache Game Scores & Validity
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Wordle Guess
• noun
1
A continuous pain in the head.
Example
"Staring at the computer screen all afternoon gave her a severe headache."
2
Something or someone that causes worry, difficulty, or annoyance.
Example
"Filing the new tax forms has become a major headache for small business owners."
Synonyms
View all synonyms for headache Antonyms
View all antonyms for headache• Rhymes for headache
Word Origin & Etymology
From Old English 'heafodece', a compound of 'heafod' (head) and 'ece' (ache, pain).
Cite this Entry
Wordmom. (2026). Definition of Headache. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/headache