IV Guide, Meaning , Facts, Information and Description
IV may refer to:
- In medicine, an acronym for intravenous, as in "IV drip" (or simply "IV") for intravenous drip, or "IV drug use" for intravenous drug use; see also intravenous therapy
- In cryptography, an acronym for initialization vector
- IV is also the Roman numeral for 4
- In music,
- the roman numeral IV is the subdominant scale degree, chord, or diatonic function, when distinguished IV = major and iv = minor.
- the roman numeral IV is the subdominant scale degree, chord, or diatonic function, when distinguished IV = major and iv = minor.
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