A thing upon which, (S, O, Msb,) or by means of which, (K,) one crosses a river; (S, O, Msb, K;) whether it be a boat [i. e. a ferryboat], (S, O, Msb,) which is also called ↓مِعْبَرَةٌ, (Az, TA,) or a bridge, (S, O, Msb,) or some other thing: (TA:) [plural مَعَابِرُ.]