verb · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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UK:/diːˌhjuːˈmɪdɪfaɪ/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:D IY0 HH Y UW0 M IH1 D AH0 F AY0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
verb
Meaning 1
To reduce the moisture in a body of air; to lower the humidity.
Definition source: English Wiktionary via Wiktextract
Examples
Many air conditioners, in addition to reducing the temperature, also dehumidify the air.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
verb
Meaning 2
make less humid
Definition source: Princeton WordNet 3.0
Examples
The air conditioner dehumidifies the air in the summer
Meaning relationships
Synonyms: none provided
Antonyms: humidify
Broader terms: dry, dry out
History
Etymology
Etymology tree Proto-Indo-European *de Proto-Indo-European *-h1 Proto-Indo-European *déh1 Proto-Italic *dē Latin dē Latin dē-der. English de- Latin ūmidus Latin hūmidusder. Old French humideder. English humid Latin -i- Proto-Italic *-fakos Latin -ficus Proto-Indo-European *-h2 Proto-Indo-European *-éh2 Proto-Indo-European *-yéti Proto-Indo-European *-eh2yéti Proto-Indo-European *-h2tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin -ficō Latin -ificāreder. Old French -ifierbor. Middle English -ifien English -ify English dehumidify From de- + humid + -ify.
Across languages
Translations
7 source translations are retained for this English entry.