1) Advent mo 2) Australian summer mo 3) Australian summer month 4) Big holiday mo 5) Big holiday month 6) Big travel mo 7) Big travel month 8) Boston Tea Party mo 9) Boxing Day mo 10) Boxing day month 11) Brief time to shop 12) Busiest month for ATM usage 13) Busy Bowl game mo 14) Busy month for the usps Found on https://www.crosswordclues.com/clue/dec
(astronomy) the angular distance to a point on a celestial object measured north or south from the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere
DEC (Digital Equipment Corporation) are a company founded by Kenneth Olsen and Harlan Anderson, both formerly of the MIT's Lincoln Laboratories. DEC was formed to build transistorised digital circuit modules and went on to produce the world's first minicomputer, and to become the world's major producer of minicomputers. Found on http://www.probertencyclopaedia.com/browse/GD.HTM