We don't have synonyms for choak yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are croak, cloak and chock.
°(nautical) Any fitting or fixture used to restrict movement, especially movement of a line; traditionally was a fixture near a bulwark with two horns pointing towards each other, with a gap between where the line can be inserted.
°To stop or fasten, as with a wedge, or block; to scotch.
°(nautical) Any fitting or fixture used to restrict movement, especially movement of a line; traditionally was a fixture near a bulwark with two horns pointing towards each other, with a gap between where the line can be inserted.
°To stop or fasten, as with a wedge, or block; to scotch.