while A2

/ʍaɪl/ During the time that; at the same time as.

quiet A1

/ˈkwaɪ̯.ɪt/ Making little or no noise.

quit A2

/kwɪt/ To stop doing something.

whilst C1

/ʍaɪlst/ During the time that; while (chiefly British and formal).

tranquil C1

/ˈtɹæŋ.kwɪl/ Calm, quiet, and peaceful.

quieten C2+

/ˈkwaɪətən/ to make or become quiet or calm

quietness C2+

/ˈkwaɪətnəs/ the state of being calm, still, or free from noise

quietus C2+

/kwaɪˈitəs/ something that ends or settles an affair; death or a final discharge

whiles C2+

/waɪlz/ while; during the time that (archaic or dialectal)