“Dot” (punto) you may know. The plural is “dots”. Mortals (mortales) that write correctly put a dot at the end of a sentence (oración).
You will also know “dot.com”.
There are some expressions using “dot”. Contemplate these:
You must pay the bill (factura) “on the dot” (debes pagar la factura en punto).
You should arrive at the foot clinic at 8.30am on the dot (a las 08.30 en punto).
Mortals have been sinning since the year dot (…han estado pecando desde los tiempos de Maricastaña).
So, do you always arrive on the dot?