Thill (?), n. [OE. thille, AS. ille a board, plank, beam, thill; akin to el a plank, D. deel a plank, floor, G. diele, OHG. dili, dilla, Icel. ilja a plank, planking, a thwart, ili a wainscot, plank; cf. Skr. tala a level surface. 236. Cf. Fill a thill, Deal a plank.]


One of the two long pieces of wood, extending before a vehicle, between which a horse is hitched; a shaft.

2. Mining

The floor of a coal mine.


Thill coupling, a device for connecting the thill of a vehicle to the axle.


© Webster 1913.

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