In compiler theory, loop interchange is the process of exchanging the order of two iteration variables used by a nested loop.

The interchange instability, also known as the Kruskal–Schwarzschild instability or flute instability, is a type of plasma instability seen in magnetic fusion energy that is driven by the gradients in the magnetic pressure in areas where the confining magnetic field is curved.

(US, Canada) A junction of two highways, one crossing over the other, having a series of exit and entrance ramps, arranged in the form of a four-leaf clover, such that traffic may proceed from either highway in all directions.

Exchange of data between businesses.

Animated images in compressed form.