Nitpick and fun fact: "we avoid opening the fridge and freezer to keep the cold inside." Technically, you cannot keep the cold inside because cold is a word f

Nitpick and fun fact: "we avoid opening the fridge and freezer to keep the cold inside." Technically, you cannot keep the cold inside because cold is a word for the absence of warmth (energy), so you're actually trying to keep the warmth outside. Words indicating the absence of something (cold, darkness, ...) are called privatives. h/t Terry Pratchett