definition of
sag

[1] #1 sag v. [droop, swag, flag] droop, sink, or settle from or as if from pressure or loss of tautness. wn

[2] #2 sag v. [sag down] cause to sag; "The children sagged their bottoms down even more comfortably". wn

[3] #3 sag n. [droop] a shape that sags; "there was a sag in the chair seat". wn