An ohm is a unit we use for electricity. It measures how hard it is for electric current to push through a wire or a part. That “hardness” is called resistance: a high number of ohms means the current has a harder time getting through; a low number means it slips through more easily. The written symbol is Ω. You meet this in science class and on little parts called resistors, almost never in ordinary chat. People say 100 ohms, or a 100-ohm resistor. One ohm is a small amount; real parts are often hundreds, thousands, or millions of ohms. It is named after Georg Ohm, a German scientist. It has nothing to do with feeling, and nothing to do with the calm sound some people make when they sit quietly.