from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Informal A father.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A father, a male parent.
  • n. Used to address one's father
  • n. Used to address an older adult male

from the GNU version of the Collaborative International Dictionary of English

  • n. Father; -- a word sometimes used by children.

from The Century Dictionary and Cyclopedia

  • To dash; throw; scatter.
  • In coal-mining, to mix (fire-damp) with atmospheric air to such an extent that it becomes incapable of exploding.
  • To fall forcibly.
  • n. A father; papa.
  • n. A lump; a large piece: as, a dad of bread.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an informal term for a father; probably derived from baby talk


Of baby-talk origin.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English dadd, dadde, perhaps of Celtic origin, compare Welsh, Breton and Gaelic dad, tad; possibly related to Russian дядя ("uncle"). (Wiktionary)



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  • The child's way of expressing father. It is remarkable, that, in all parts of the world, the word for father, as first taught to children, is compounded of a and t, or the kindred letter d differently placed; as tad, Welsh; ἄττα, Greek; atta, Gothick; tata, Latin. Mammas atque tatas habet Afra, Mart.] Father.

    I was never so bethumpt with words,
    Since first I call’d my brother’s father dad. Shakesp. K. John.

    His loving mother left him to my care;
    Fine child, as like his dad as he could stare! Gay.

    (Johnson's Dictionary)

    April 19, 2011

  • Means "wet nurse" in Albanian. (A doubly false friend!)

    July 13, 2009

  • Da Nang International Airport.

    October 24, 2008

  • The Persian word for a "stampede".

    June 25, 2008