Keycap: 0 0️⃣
Copy & Meaning

A zero keycap — the numeral 0 as a pressable button, representing both the mathematical concept of zero and the keyboard key bearing that digit. Zero is mathematically profound — a number that represents nothingness while being essential to place value systems that make large numbers expressible.

As a keycap, 0️⃣ can represent the zero button in any numbered system, ordering contexts (zero-indexed starting points), or any numbered sequence that begins with zero. Used for numbered lists and sequences, countdown contexts, the mathematical and philosophical concept of nothing/zero, and any ordered communication where indicating the zero position matters.