Micro: Mini, small, tiny.
Micro is also a term used in the RTS "Starcraft," as a term for modified unit control.
Micro can also refer to the descriptions of micro-organisms.
Micro as a unit of measurement is defined as: "One millionth."
"Have you seen my micro hot-wheels?"
"He was able to defeat me because he has really good micro."
"Micro-organisms are too small to be seen by the human eye."
"One millionth of an inch is called a Micro-inch"