1. a condition inferior to an earlier condition; a gradual falling off from a better state

Similar word(s): decline

Definition categories: state, condition, status

2. a downward slope or bend

Similar word(s): declension, decline, declivity, descent, downslope, fall

Definition categories: object, incline, side, slope

3. (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

Similar word(s): dec

Definition categories: location

4. a polite refusal of an invitation

Similar word(s): regrets

Definition categories: communication, acknowledgement, acknowledgment, refusal

Sentences with declination as a noun:

- declination of the head