Straight
From Wikipedia, a free encyclopedia written in simple English for easy reading.
The word straight means something that goes in one direction without turns, bends, or curves.
Lines can bend in a curve. If lines do not bend, they are straight. For example, the edge of a circle is not straight. The edge of a circle bends in a curve.
Light bends in a curve in air and water, but travels in a straight line away from the earth or other bodies in space where there is no air.
In slang, just as the word gay means homosexual, the word straight means heterosexual.
