clough/klʌf/clough means A surname transferred from the common noun.clough is pronounced /klʌf/.Etymology* As an English surname, from the noun clough. * As a Welsh surname, from cloff (“lame”), from Late Latin cloppus, perhaps ultimately imitative of a limping person. * As an Irish place name, from Irish an Chloch, "the stone".nameA surname transferred from the common noun.A village and townland in County Down, Northern Ireland.A village in County Laois, Ireland.An extinct town in Meade County, South Dakota, United States.nounA narrow valley; a cleft in a hillside; a ravine, glen, or gorge.“The day-sky glimmered on the dew[…] And lurked in heath and braken clough”A sluice used in returning water to a channel after depositing its sediment on the flooded land.“I have, accordingly, estimated the depth of drain at the lower end to be 1 foot 6 inches deeper than the fill of the clough, and given it a progressive rise to suit with 5 feet depth below the surface at its head.”The cleft or fork of a tree; crotch.“The same praise should not be refused to the North-countryman who talks of "the clough" of the tree, literally the valley, the cleft, where the branches part.”A wood; weald.