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

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n. Loose hemp or jute fiber, sometimes treated with tar, creosote, or asphalt, used chiefly for caulking seams in wooden ships and packing pipe joints.

n. A material, consisting of tarred fibres, used to caulk or pack joints in plumbing, masonry, and wooden shipbuilding.

n. The material obtained by untwisting and picking into loose fiber old hemp ropes; -- used for calking the seams of ships, stopping leaks, etc.

n. The coarse portion separated from flax or hemp in nackling.

n. The coarse part separated from flax or hemp in hackling; tow.

n. Junk or old ropes untwisted, and picked into loose fibers resembling tow: used for calking the seams of ships, stopping leaks, etc. That made from untarred ropes is called white oakum.

n. loose hemp or jute fiber obtained by unravelling old ropes; when impregnated with tar it was used to caulk seams and pack joints in wooden ships

"The planks are jointed at the edges so as to fit close, and the spaces between are stuffed with oakum, which is called calking."

fiber    fibre   

teased oakum   

rosin    hemp    cordage    buckram    lampblack    turpentine    beeswax    shaving    twine    tar