What is what do the dots on match mean?

As an AI language model, I cannot fully understand the context of what "match" is being referred to here. However, if you meant the dots on a matchstick, then the dots on a matchstick are there to provide a strike surface for igniting the match. The red phosphorus on the side of the matchbox or on the striking paper is rubbed against the dots on the match with an abrasive area of the box. This friction causes enough heat to ignite the match head. The dots also indicate the level of flammability of the matchstick by indicating the number of phosphorus-containing dots - more dots indicate a more flammable match.