(derogatory) A simple-minded person lacking common sense.

(mathematics, physics) oscillating motion (as of a pendulum) in which the acceleration of the oscillator has an equal magnitude but opposite direction to the displacement of it from the equilibrium position

(transitive) To make simpler, either by reducing in complexity, reducing to component parts, or making easier to understand. / (intransitive) To become simpler.

The private ownership of property (real estate) in which the owner has the right to control, use, and transfer the property at will.

(intransitive) To smile in a foolish, frivolous, self-conscious, coy, obsequious, or smug manner. / (obsolete) To glimmer; to twinkle.

A foolish, frivolous, self-conscious, or affected smile; a smirk.

The quality or state of being unmixed or uncompounded / The quality or state of being not complex, or of consisting of few parts

The act of simplifying or something that has been simplified. / (logic) A valid simple argument.

A single beam or pole without a cross bar for executions.

comparative form of simple: more simple, less complicated or challenging.