/swel/v[I/T](past tenseswelled, past participleswollen/ˈswoʊ·lən/ or swelled)(INCREASE)
›to become larger and rounder: [I]It’s spring, and the buds on the trees are beginning to swell.[I]One of his eyes swelled shut.[T]Immigrants swelled the city’s population (= increased it).[I]fig. His chest swelled with pride at being chosen (= He felt extremely proud).swelling
/ˈswel·ɪŋ/n[C/U]›[U]We won’t know how serious the injury is until the swelling subsides.