Meaning

noun a very small circular shape

noun the United States federal department that institutes and coordinates national transportation programs; created in 1966

noun the shorter of the two telegraphic signals used in Morse code

originFrom Middle English *dot, dotte, from Old English dott (“a dot, point”), from Proto-West Germanic *dott, from Proto-Germanic *duttaz (“wisp”). Cognate with Saterland Frisian Dot, Dotte (“a clump”), Dutch dot (“lump, knot, clod”), Low German Dutte (“a plug”), dialectal Swedish dott (“a little heap, bunch, clump”).

Etymology from Wiktionary, CC BY-SA 3.0