THOROUGHFARE. A street or way so open that one can go through and get out of it without returning. It differs from a cul de sac, (q.v.) which is open only at one end. 2. Whether a street which is not a thoroughfare is a highway, seems not fully settled. See 1 Campb. 260; 5 Taunt. 137; 11 East, 376, n.; Hawk. P. C. B. 1, c. 76, s. 1; 5 Barn. & Ald. 456. See Dedication.