Hot may refer to any of the following:
2. With electronics and power, the hot wire carries the power. Often the hot wire is black when you have a black and white wire. However, to help prevent any bodily harm, always use a voltage tester to verify what wire has a voltage.
3. With cabling that does not have power (e.g., data cable), the hot cable or hot wire is a cable with a signal.
4. With an image or picture, hot is any overexposed area.
5. In an RPG (role-playing game) or MMORPG (massively-multiplayer online role-playing game), HoT is short for "heal over time." It describes a spell, ability, or effect that restores health gradually. For example, a player may cast a heal for 1,000 health points, but it heals for 250 health each second for four seconds.