Simple is an adjective meaning that the noun it modifies has few attributes. The term is often confused with simplistic. "We got the simplest of simple meals - a dry roll. Nothing on it, and nothing beside it."
In music a simple interval which lies within one octave, contrasted with a compound interval which exceeds or is wider than one octave.
In mathematics, an algebra is simple if it contains no non-trivial ideals (see also simple ring). A group is a simple group if it has no non-trivial normal subgroup.
The brand name for an American shoe manufacturer, a division of Deckers Outdoor Corporation. The Simple shoes brand is popular among surfing and skateboarding enthusiasts.
Simple English Wikipedia is a version of Wikipedia that uses simpler English language, for students, teachers, translators, and non-native speakers.
Simplicity is the property posessed by things that are simple.