WordReference Random House Unabridged Dictionary of American English © 2026
dec-, 
  1. var. of deca- before a vowel:decathlon.

Dec., 
  1. December.

dec., 
    1. (in prescriptions) pour off.
      • Latin dēcantā
    2. deceased.
    3. decimeter.
    4. Grammardeclension.
    5. decrease.
    6. Music and Dancedecrescendo.

Collins Concise English Dictionary © HarperCollins Publishers::
dec.
  1. deceased
  2. decrescendo
'Dec.' also found in these entries (note: many are not synonyms or translations):
Ambrose - Becket - Capricorn - Christmas - Clement of Alexandria - Dec - Decalogue - December - Dewey decimal classification - Ember day - Ember days - Ignatius - John - John of Damascus - John of the Cross - Lucy - New Year's Eve - Rundstedt - Sagittarius - Stephen - Thomas - World War I - World War II - Xavier - art deco - binary-coded decimal system - chlordecone - circulating decimal - dean - dec- - deca- - decadal - decahydrate - decanal - decane - decanoic acid - decastyle - decathlon - decatyl alcohol - deccan hemp - decennary - decigram - decile - deciliter - decillion - decimal - decimal classification - decimal fraction - decimal system - decimalize

Forum discussions with the word(s) "Dec." in the title:


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