1. (noun)
decline, declination
a condition inferior to an earlier condition; a gradual falling off from a better state
2. (noun)
descent, declivity, fall, decline, declination, declension, downslope
a downward slope or bend
3. (noun)
declination, celestial latitude, dec
(astronomy) the angular distance of a celestial body north or to the south of the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere
4. (noun)
declination, regrets
a polite refusal of an invitation
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