ridge (in field); row of raised earth when planting crops; rib (cloth, mountains, sea); cord (e.g. corduroy)
ribbed fabric; corded fabric; ridged fabric; corduro; repp; rep
furrow; room with ridged roof
to wind (of a road, etc.); to meander; to twist; to undulate; to surge; to swell
building rice-field ridges
ridged whale meat used to make whale "bacon"
undulation; winding; meandering; swell (of waves); surge; billow