WordNet: bed

a foundation of earth or rock supporting a road or railroad track; "the track bed had washed away"

• hypernym base, foot, foundation, fundament, groundwork, substructure, understructure

• hyponym railroad bed

• hyponym roadbed

bed

• (suomi) alusta (synonyymi)

• (suomi) penger (synonyymi)

• (suomi) perusta (synonyymi)