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altérer

French, verb/al.te.ʁe/

altérer is spelled A-L-T-É-R-E-R (7 letters) and appears 1.8 times per million words in written French, the 22,196th most frequent French word form (wordfreq, 2021 data). Altérer is a French verb meaning “to alter; change; fiddle with” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Modifier dans sa nature, dans sa structure, un corps”.

What does altérer mean in English?

verb

  1. 1

    to alter; change; fiddle with

  2. 2

    to cause thirst

Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).

How French dictionaries define it

verb: 1. Modifier dans sa nature, dans sa structure, un corps. 2. Modifier en bien ou en mal. 3. Modifier en mal. 4. Causer de la soif.

The definition in the French Wiktionary (Wiktionnaire), in French.

Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.

Forms of altérer

  • avoir + past participle infinitive multiword-construction
  • altérant gerund participle present
  • ayant + past participle gerund multiword-construction participle
  • altéré participle past
  • altère first-person indicative present
  • altères indicative present second-person
  • altérons first-person indicative plural
  • altérez indicative plural present
  • altèrent indicative plural present
  • altérais first-person imperfect indicative
  • altérait imperfect indicative singular
  • altérions first-person imperfect indicative
  • altériez imperfect indicative plural
  • altéraient imperfect indicative plural
  • altérai first-person historic indicative
  • altéras historic indicative past
  • altéra historic indicative past
  • altérâmes first-person historic indicative

Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).

How do you pronounce altérer?

  • /al.te.ʁe/
  • \al.te.ʁe\

Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.

English words that translate to altérer

Source: the translation tables of the English Wiktionary, dump of September 2, 2026.

How common is altérer in French?

altérer appears 1.8 times per million words in written French.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

What to look up after altérer