IV

Look up iv or IV in Wiktionary, the free dictionary.

IV as the Roman number for four may refer to:

• Led Zeppelin IV, the fourth album by Led Zeppelin containing the popular song "Stairway to Heaven"
• Atomic Rooster IV, the U.S. release of Atomic Rooster's fifth album, Nice 'n' Greasy
• IV (The Aggrolites album), the fourth album by The Aggrolites
• IV (Cypress Hill album), the fourth album of Cypress Hill
• IV (Diamond Rio album), a 1996 album by Diamond Rio
• IV (Faust album), also known as Faust IV, the fourth album by Faust
• IV (Godsmack album), the fourth album of Godsmack
• IV (To/Die/For album), the fourth album of To/Die/For
• IV (Veruca Salt album), the fourth album by Veruca Salt
• IV (Winger album), an album of Winger
• I.V., X Japan song
• Toto IV, the fourth album of the band Toto
• Grand Theft Auto IV, a video game that was referred to simply as IV by the developers before its release
• Vexen IV in Kingdom Hearts

IV as an initialism may refer to:

• Current-voltage in electronics where I=current and V=voltage
• Côte d'Ivoire, from the NATO country code
• Immigration Voice a non-profit organisation working to alleviate problems faced by legal high-skilled foreign workers in the United States.
• Implied volatility in financial mathematics
• Independent verification systems, voting machines
• Industrievereinigung, Federation of Austrian Industry
• Initialization vector, a nonsecret binary vector in cryptography
• Instrumental variable, a statistical analysis method
• Inter vivos trust, a living trust created during a person's lifetime
• International Viewpoint, the monthly magazine of the Reunified Fourth International
• InterVarsity Christian Fellowship, a Christian ministry for college students
• Intravenous therapy, giving of a liquid substance directly into a vein therapeutically
• Intravenous_drug_use_(recreational), giving of a liquid substance directly into a vein recreationally
• IrfanView, a freeware image viewer
• Irish Volunteers, a historical organisation from Ireland.
• Isla Vista, an unincorporated community in Santa Barbara County, California, US

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