noun · 7 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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/ˌeɪtʃˌaɪˈviː/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:EY1 CH AY1 V IY1 # abbrev
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Initialism of human immunodeficiency virus.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: human immunodeficiency virus, HIV, AIDS virus, HIV virus, house in Virginia, human T-lymphotropic virus III, HTLV-III, lymphadenopathy-associated virus, LAV
Antonyms: none provided
2
noun
Meaning 2
Initialism of human immunodeficiency virus.
The infection caused by HIV.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: human immunodeficiency virus, HIV, AIDS virus, HIV virus, house in Virginia, human T-lymphotropic virus III, HTLV-III, lymphadenopathy-associated virus, LAV, HIV/AIDS, acquired immunodeficiency syndrome, AIDS, 4H disease, gay cancer, gay plague, gay-related immunodeficiency, GRID
Antonyms: none provided
3
noun
Meaning 3
Initialism of header isolation valve.
Definition source: English Wiktionary via Wiktextract