tocar

1 : to touch, to feel, to handle
2 : to touch on, to refer to
3 : to concern, to affect
4 : to play (a musical instrument)

1 : to knock, to ring <tocar a la puerta : to rap on the door>
2 tocar en : to touch on, to border on <eso toca en lo ridículo : that's almost ludicrous>
3 tocarle a : to fall to, to be up to, to be one's turn <¿a quién le toca manejar? : whose turn is it to drive?>