to become larger and rounder than usual; to (cause to) increase in size or amount
My sister’s stomach began to swell after she got pregnant.
After the heavy rainfall, the river began to swell, reaching dangerously high levels.
As the dough rose, it started to swell in the warm kitchen, promising a perfectly fluffy loaf of bread.
The crowd's excitement continued to swell as the anticipation for the concert grew.
Following the injury, her ankle began to swell, prompting a visit to the doctor for examination.
