swimmer
n. countable A2 Elementary US //ˈswɪmɝ// UK //swˈɪmɐ// swim·mer
n. a person who swims, either for fun or as a sport.
n. a person who propels themselves through water by bodily movement; often refers to a person engaged in swimming as a competitive sport or recreational activity.
She is a very fast swimmer.
The lifeguard watched every swimmer in the pool to make sure everyone stayed safe.
Even an experienced swimmer can find the powerful currents of the open ocean difficult to navigate without proper training and local knowledge.
From Middle English swimmere, equivalent to swim + -er. The dumplings are so called because they are often served in stew.