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

• Lexulous
• Wordscraper
• Wordosaur

n. A raised roadway, as across water or marshland.

n. A paved highway.

n. A road that is raised, as to be above water, marshland etc.

n. A way or road raised above the natural level of the ground, serving as a dry passage over wet or marshy ground.

n. A road or path raised above the natural level of the ground by stones, earth, timber, fascines, or the like, serving as a dry passage over wet or marshy ground, over shallow water, or along the top of an embankment.

n. A sidewalk, or path at the side of a street or road raised above the carriageway.

To provide with a cause way; pave, as a road or street, with blocks of stone.

v. pave a road with cobblestones or pebbles

n. a road that is raised above water or marshland or sand

v. provide with a causeway

"The causeway is the main one, and a toll bridge ($2) on the West end of the Island, plus the Bolivar Ferry. eipi10 said ..."

causey   

pave    route    road    furnish    provide    supply    render   

giant's causeway    crown of the causey   

causewayed   

roadway    walkway    rampart    stairway    embankment    aqueduct    breakwater    pier    thoroughfare    promontory