adj

• (masonry) Built without or lacking mortar.
  "[A]lready the gate was blocked with a wall of squared stones laid dry, but very thick and very high, across the opening."
• (chemistry) Anhydrous: free from or lacking water in any state, regardless of the presence of other liquids.
  "Dry alcohol is 200 proof."
• (figurative) Athirst, eager.
  "Prospero:[…]Confederates / (ſo drie he was for Sway) with King of Naples / To giue him Annuall tribute, doe him homage / Subiect his Coronet, to his Crowne and bend / The Dukedom yet vnbow'd (alas poore Millaine) / To moſt ignoble ſtooping."
• (law) Describing an area where sales of alcoholic or strong alcoholic beverages are banned.
  "You'll have to drive out of this dry county to find any liquor."

noun

• (US) A prohibitionist (of alcoholic beverages).
  "The drys were as unhappy with the second part of the speech as the wets were with the first half."
• (chiefly Australia, with "the") The dry season.
  "[…] one was sodden to the bone and mildewed to the marrow and moved to pray […] for that which formerly he had cursed—the Dry! the good old Dry—when the grasses yellowed, browned, dried to tinder, burst into spontaneous flame— […]"
• (Australia) An area of waterless country.
• (British, UK politics) A radical or hard-line Conservative; especially, one who supported the policies of British Prime Minister Margaret Thatcher in the 1980s.

verb

• (intransitive) To lose moisture.
  "The clothes dried on the line."
• (transitive) To remove moisture from.
  "Devin dried her eyes with a handkerchief."
• (transitive, figurative) To exhaust; to cause to run dry.
• (intransitive, informal, theater) For an actor to forget their lines while performing.
  "An actor never stumbled over his lines, he “fluffed”; he never forgot his dialogue, he “dried.”"

phrase

• (software engineering) Acronym of don't repeat yourself (“software development principle aimed at reducing repetition”).
  "The general principle here is DRY: Don't Repeat Yourself (HTOO). If you duplicate information in two or more places, sooner or later, you'll forget to update one of the copies […]"