Focus on the pronunciation of swell
English definition of “swell”
/swel/ v [I/T] (past tense swelled, past participle swollen /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.