diaeresis

1 of 2

noun (1)

di·​aer·​e·​sis dī-ˈer-ə-səs How to pronounce diaeresis (audio)
British also -ˈir-
variants or dieresis
plural diaereses dī-ˈer-ə-ˌsēz How to pronounce diaeresis (audio)
British also -ˈir-
1
: a mark ¨ placed over a vowel to indicate that the vowel is pronounced in a separate syllable (as in naïve or Brontë) compare umlaut
2
: the break in a verse caused by the coincidence of the end of a foot with the end of a word
diaeretic adjective

dieresis

2 of 2

noun (2)

di·​er·​e·​sis

variant spelling of diaeresis

1
: a mark ¨ placed over a vowel to indicate that the vowel is pronounced in a separate syllable (as in naïve or Brontë) compare umlaut
2
: the break in a verse caused by the coincidence of the end of a foot with the end of a word

Examples of diaeresis in a Sentence

Recent Examples on the Web
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Noun
Examples include Spanish or French words like jalapeño (tilde), fiancé (acute), très (accent grave), Noël (diaeresis), façade (cedilla) or hôpital (circumflex). Marc Saltzman, USA TODAY, 19 Mar. 2022

Word History

Etymology

Noun (1)

Late Latin diaeresis, from Greek diairesis, literally, division, from diairein to divide, from dia- + hairein to take

First Known Use

Noun (1)

circa 1611, in the meaning defined at sense 1

Time Traveler
The first known use of diaeresis was circa 1611

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Cite this Entry

“Diaeresis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diaeresis. Accessed 18 Jun. 2026.

Kids Definition

diaeresis

noun
di·​aer·​e·​sis
variants or dieresis
dī-ˈer-ə-səs
plural diaereses or diereses
-ˈer-ə-ˌsēz
: a mark ¨ placed over a vowel to show that it is pronounced in a separate syllable (as in naïve or Brontë)

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