Semi-acoustic guitar

A semi-acoustic guitar, hollow-body electric, or thinline is a type of electric guitar that was first created in the 1930s. It has a sound box and at least one electric pickup.[1] The semi-acoustic guitar is different to an acoustic-electric guitar, which is an acoustic guitar with the addition of pickups or other means of amplification, added by either the manufacturer or the player.

Fully hollow-body electric guitar Gibson ES-150, with a pair of f-holes visible.
Semi hollow-body electric guitar Gibson ES-335 has a "solid center block" inside a body.