definition of
subside

[1] #1 subside v. [lessen] wear off or die down; "The pain subsided". wn

[2] #2 subside v. sink to a lower level or form a depression; "the valleys subside". wn

[3] #3 subside v. [settle] sink down or precipitate; "the mud subsides when the waters become calm". wn

[4] #4 subside v. [sink] descend into or as if into some soft substance or place; "He sank into bed"; "She subsided into the chair". wn