(dot) noun
1. A minute, round, or nearly round mark; a speck, spot, or point.
2. In writing and printing, a small spot used as a part of a letter, in punctuation, etc.
3. Music A point, written after a note or rest, which lengthens its value by half.
4. A little lump; clot.
5. A precise moment of time: on the dot.
6. Telecom. A signal of shorter duration than the dash, with which it is combined in the transmission of messages in the Morse or any similar code.
—v. dot·ted, dot·ting v.t.
1. To mark with a dot or dots.
2. To spread or scatter like dots.
3. To diversify with, or delineate by means of, dots.
—v.i.
4. To make a dot or dots.
—to dot one's i's and cross one's t's To be or to make one's work perfect in every detail. [OE dott head of a boil]

(dot) noun
A woman's marriage portion; dowry. [<F <L dos, dotis]
—do·tal (dōt′l) adjective

(dot), Dot·ty (dot′ē)
Diminutives of DOROTHY.