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Noun dot has 4 senses
- point, dot - a very small circular shape; "a row of points"; "draw lines between the dots"
--1 is a kind of disk, disc, saucer
- Department of Transportation, Transportation, DoT - the United States federal department that institutes and coordinates national transportation programs; created in 1966
--2 is a kind of executive department
--2 has parts:
- dot, dit - the shorter of the two telegraphic signals used in Morse code
--3 is a kind of telegraphic signal, radiotelegraphic signal
--3 is a part of Morse, Morse code, international Morse code
- acid, back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen - street name for lysergic acid diethylamide
--4 is a kind of lysergic acid diethylamide, LSD