thwart, cross thwart (verb)

a crosspiece spreading the gunnels of a boat; used as a seat in a rowboat

thwart, queer, spoil, scotch, foil, cross, frustrate, baffle, bilk (verb)

hinder or prevent (the efforts, plans, or desires) of

"What ultimately frustrated every challenger was Ruth's amazing September surge"; "foil your opponent"

thwart (Noun)

A brace, perpendicular to the keel, that helps maintain the beam (breadth) of a marine vessel against external water pressure and that may serve to support the rail.

thwart (Noun)

A seat across a boat on which a rower may sit.

thwart (Verb)

to prevent; to halt; to cause to fail; to foil; to frustrate

Thwart

A thwart is a strut placed crosswise in a ship or boat, to brace it crosswise. In rowboats it can also serve as a seat for a rower. Some inflatable boats have a thwart which can be folded and removed so the boat can be deflated and rolled up for transport or storage.

Thwart

A thwart is a part of an undecked boat that provides seats for the crew and structural rigidity for the hull. A thwart goes from one side of the hull to the other. There might be just one thwart in a small boat, or many in a larger boat, especially if several oarsmen need to be accommodated.