noun rehearsing a word as declined.
2. declension ·noun the act or the state of declining; declination; descent; slope.
3. declension ·noun inflection of nouns, adjectives, ·etc., according to the grammatical cases.
4. declension ·noun act of courteously refusing; act of declining; a declinature; refusal; as, the declension of a nomination.
5. declension ·noun the form of the inflection of a word declined by cases; as, the first or the second declension of nouns, adjectives, ·etc.
6. declension ·noun a falling off towards a worse state; a downward tendency; deterioration; decay; as, the declension of virtue, of science, of a state, ·etc.