Washboard

• POS: Noun
• HYPHEN: wash=board

CIDE DICTIONARY

Washboard, n. 

•  A fluted, or ribbed, board on which clothes are rubbed in washing them.  [1913 Webster]
•  A board running round, and serving as a facing for, the walls of a room, next to the floor; a mopboard.  [1913 Webster]
•  A broad, thin plank, fixed along the gunwale of boat to keep the sea from breaking inboard; also, a plank on the sill of a lower deck port, for the same purpose; -- called also wasteboard.  Mar. Dict.  [1913 Webster]

OXFORD DICTIONARY

Washboard, n.
1 a board of ribbed wood or a sheet of corrugated zinc on which clothes are scrubbed in washing.
2 this used as a percussion instrument, played with the fingers.

THESAURUS

Washboard

Tarmac, Tarvia, asphalt, bitumen, bituminous macadam, blacktop, brick, broken ground, broken water, cement, chop, cobble, cobblestone, concrete, corduroy, corduroy road, corrugation, curb, curbing, curbstone, edgestone, flag, flagging, flagstone, goose bumps, goose pimples, gooseflesh, gravel, horripilation, kerb, kerbstone, lop, macadam, pavement, pavestone, paving, paving stone, ripple, road metal, rough, sandpaper, stone, tarmacadam, tile