noun

• (grammar) A punctuation mark used to indicate the end of a sentence or an abbreviated part of a word; a full stop; a period.
• (mathematics) A symbol used for separating the fractional part of a decimal number from the whole part, for indicating multiplication or a scalar product, or for various other purposes.
• (obsolete) A lump or clot.
• (cricket, informal) A dot ball.
  "That left 15 needed from Boult's final set. Two dots were followed by a heave over deep mid-wicket, then came the outrageous moment of fortune."

verb

• (transitive) To cover with small spots (of some liquid).
  "His jacket was dotted with splashes of paint."
• (transitive) To add a dot (the symbol) or dots to.
  "Dot your is and cross your ts."
• (colloquial) To punch (a person).
  "`Which means,' said John, `that someone dotted him a good one, shoved him into the bathtub, ran the water, then opened his mouth and poured champagne into it until he drowned.'"

noun

• (US, Louisiana) A dowry.
  ""Have you the pictures still?" I asked. "Yes; I am keeping them till my daughter is of marriageable age, and then I shall sell them. They will be her dot.""

name

• (US) Initialism of Department of Transportation or Department of Transport.
  "Alaska DOT crews returned to Igiugig on Tuesday to repair the lights, which are now back in service, Dapcevich said."
• (Philippines) Initialism of Department of Tourism.