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 low tract of land, especially when moist or marshy.

n. A long, narrow, usually shallow trough between ridges on a beach, running parallel to the coastline.

n. A shallow troughlike depression that carries water mainly during rainstorms or snow melts.

n. A low tract of moist or marshy land.

n. A long narrow and shallow trough between ridges on a beach, running parallel to the coastline.

n. A shallow troughlike depression that's created to carry water during rainstorms or snow melts; a drainage ditch.

n. A shallow, usually grassy depression sloping downward from a plains upland meadow or level vegetated ridgetop.

n. A shallow trough dug into the land on contour (horizontally with no slope). Its purpose being to allow water time to percolate into the soil.

n. A gutter in a candle.

n. A valley or low place; a tract of low, and usually wet, land; a moor; a fen.

v. To melt and waste away; to singe. See sweal, v.

n. A gutter in a candle.

n. A shade, or shady spot.

n. A low place; a slight depression in a region in general nearly level, especially one of the lower tracts of what is called in the western United States “rolling prairie.”

Bleak; windy.

To melt and run down, as from heat; show the effects of great heat, whether by melting or by burning slowly.

To burn, whether by singeing or by causing to melt or to run down; especially, to dress, as an animal killed for food, by singeing off the hair.

n. A gutter in a candle.

n. a low area (especially a marshy area between ridges)

"a hill in the pasture, and I went to the top of this and saw the colt at the far side of the pasture in what we call the swale -- low, wet ground, where weeds abound."

trough   

sweal   

moor    fen   

intervale    hummock    savanna    riverbank    acclivity    hillock    hummocks    ridgeline    table-land    eminences