cap·size 
/ˈkæpˌsaɪz/ verb
cap·siz·es; cap·sized; cap·siz·ing /ˈkæpˌsaɪz/ verb of a boat : to turn over : to turn so that the bottom is on top [no obj] ▪ The canoe suddenly capsized. [+ obj] ▪ They were fooling around and accidentally capsized the canoe.
