an abnormal enlargement of a part of the body, typically as a result of an accumulation of fluid

painless swellings may appear in the lower abdomen

becoming greater in intensity, number, amount, or volume

the swelling ranks of Irish singer-songwriters

(especially of a part of the body) become larger or rounder in size, typically as a result of an accumulation of fluid

her bruised knee was already swelling up

the sky was black and swollen with rain

swollen glands

become or make greater in intensity, number, amount, or volume

the low murmur swelled to a roar

the city's population was swollen by refugees