LASSO Meaning of LASSO in English n. & v.n. (pl. -os or -oes) a rope with a noose at one end, used esp. in n. America for catching cattle etc. v.tr. (-oes, -oed) catch with a lasso. lassoer n.[ Sp. lazo LACE ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012