cushion · noun C /ˈkʊʃ.ən/
cushion (CLOTH BAG)
B1 a cloth bag filled with something soft which you sit on or lean against to make you comfortable
Dictionary example:
She sank back against/into the cushions.
Learner example:
I['ll] go to b[u]y a nice wardrobe, a[n] armchair and a lot of cushions. (Preliminary English Test; B1; Portuguese)
cushion (PROTECTION)
C2 something that protects you from possible problems
Dictionary example:
Overseas savings provide a cushion against tax increases at home.
Learner example:
The only answer for the Spanish situation is that families are acting as a cushion, by giving the youngest in working age [housing] and help. (Certificate of Proficiency in English; C2; Catalan)