If something's portable, you can easily take it with you . You may carry your portable computer with you from class to class because it's small, light, and fits easily in your backpack.
First appearing around 1400, portable stems from the Latin word portare, meaning "to carry." Used as an adjective, portable describes something you can carry around easily. Used as a noun, it means a smaller, easy-to-carry version of something, like a computer or television. On a trip, you might take your portable so you can watch movies in the car. Before computers became popular, you might have carried around a lightweight typewriter called a portable.