|Origin:||dott 'top of a spot on the skin'|
dot1 S2 [countable]
a small round mark or spot:
a pattern of dots
exactly on time or at a particular time:
I'll be there on the dot.
something that looks like a small spot because it is so far away:
The plane was just a dot on the horizon.
a short sound or flash of light used when sending messages by Morse code [↪ dash]