n.
1.change toward something smaller or lower
2.a condition inferior to an earlier condition
3.a gradual decrease
4.a downward slope or bend decline v.
1.grow worse
2.refuse to accept
3.show unwillingness towards
4.grow smaller
5.go down
6.go down in value
7.inflect for number, gender, case, etc., "in many languages, speakers decline nouns, pronouns, and adjectives"
Idiom of the Day
trip up (someone) or trip (someone) up
to cause someone to fail, to cause someone to make a mistake
The news reporter tripped up the politician with his difficult question.