/
ləˈsuː, 
ˈlasəʊ/
n.
 (pl. lassos or lassoes)
 a rope with a noose at one end, used especially in North America for catching cattle.
v.
 (lassoes, lassoing, lassoed)
 catch with a lasso.
Derivative
Etymology
C18: representing an Amer. Sp. pronunc. of Sp. lazo, based on L. laqueus ‘noose’.