This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A beam projecting outward from the bow of a ship and used as a support to lift the anchor.

n. A heavy piece of timber projecting from each side of the bow of a ship for holding anchors which were fitted with a stock in position for letting go or for securing after weighing.

n. Similar rigging on the outside of a building.

n. A projecting piece of timber or iron near the bow of vessel, to which the anchor is hoisted and secured.

n. A large timber or heavyiron beam projecting from each bow of a ship, and having sheaves in its outer end.

n. In mining, a small capstan.

n. Nodular or ball ironstone.

Nautical, to attach to the cat-head.

n. An attachment to a lathe to assist in supporting long bars when they are being turned.

"Rich land, suitable for laying down in grass, is covered with a dense growth of sassafras, tree-fern, musk, and pear tree, with large blue or swamp gums, and an underbush of what are known as cathead ferns."

cat-head stopper   

looby    blinker    gunnel    clodhopper    yardarm