Casino Industry Glossary

Paylines

Slot Machines & Electronic Gaming

The predetermined lines across reels where matching symbols must align to form winning combinations.

In practice

Classic slot mechanic; can be adjustable or fixed.

One entry from the Casino Industry Glossary — 1,157 terms written for surveillance, compliance and operations professionals rather than for players. Definitions describe industry usage; where a term carries a regulatory meaning, verify against the instrument that governs your jurisdiction.