IV 

the abbreviation of intravenous. The method of application of some medicines and drugs.

mephedrone IV??? dude, ur sick.

IV by ladysali March 12, 2010

IV 

the abbreviation of Isla Vista, the small college community connected to UC Santa Barbara, one of the top 10 party schools.

I went to a crazy party in IV last weekend and got hella smashed.

IV by Lauren Holden March 31, 2005

IV 

1) 'Four' in Roman numerals.

2) Intraveneous, as in 'intraveneous fluids'.

1) Harold IV was the fourth Harold in his family.

2) While you're here, sir, we need to hook you up to this IV.

IV by Diggity Monkeez February 8, 2005

IV 

IV (abbreviation for Initial Value) in Pokemon video games (blue, emerald, diamond, etc.) - IVs are randomly generated numbers that give individual Pokemon a bonus from 1-31 in each stat. These are set bonuses that are unchangeable from the time the Pokemon is born or first seen in the wild.

Not all Pokemon are created equal. My Pikachu is better than yours because he was born with a 31 IV in speed and special attack.

IV by Gary Burb, XBOX's Major A-Hole March 30, 2009

IV 

Acronym for Independent Variable.

Does your title give the IV, the DV, and the method used in your study?

IV by Gods own G April 16, 2006

IV 

Grand Theft Auto 4, or GTA IV.
IV also is roman numeral for 4.

(Example one)
Random Guy 1: OMG GTA IV IS COMING OUT!
Random Guy 2: YAYS!
(Example two)
Some Roman Guy 1: IV means 4.
Some Roman Guy 2: No shit...

IV by Tony Scarface Montana October 22, 2008

iv 

a roblox kid who sweats at grand piece online

"Yo that kid is an iv"

iv by justpsace February 19, 2021