Word.ws English Dictionary

Plural of disease

regular plural

The plural of disease is diseases.

Forms of disease

Singulardisease /dɪˈziːz/
Pluraldiseases /dɪˈziː.zɪz/
Countablecountable and uncountable

Diseases in a sentence

  • Scurvy and other diseases ran rampant, killing more seamen each year than all other causes combined, including combat.2012 March, William E. Carter, Merri Sue Carter, “The British Longitude Act Reconsidered”, in American Scientist, volume 100, number 2...
  • The Europeans brought new diseases such as smallpox, measles, dysentery, influenza, syphilis and leprosy.From the entry smallpox
  • Cancer is a catch-all term that encompasses a wide variety of diseases.From the entry catch-all
  • Treatment of inflammatory bowel diseases has improved as human understanding of molecular biology has advanced.From the entry inflammatory bowel disease
  • Upon returning from the field, he went into isolation for a week so as not to infect anyone with potential diseases.From the entry isolation

Meaning of disease

  1. noun An abnormal condition of a human, animal or plant that causes discomfort or dysfunction; distinct from injury insofar as the latter is usually instantaneously acquired.
  2. noun Any abnormal or harmful condition, as of society, people's attitudes, way of living etc.
  3. noun A lack of ease; uneasiness; trouble; vexation; disquiet.

Full definition of disease

Questions about the plural of disease

What is the plural of disease?
The plural of disease is diseases.
Is disease countable?
Disease is a countable and uncountable noun.

Source and license

Adapted from Wiktionary: disease (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Plural of disease.” Word.ws, https://word.ws/plural/disease. Based on Wiktionary, CC BY-SA 4.0.