1. (noun) a long narrow range of hills

• ridgeline

2. (noun) a beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters

• ridgepole
• rooftree

1. (verb) plough alternate strips by throwing the furrow onto an unploughed strip

• agriculture
• farming
• husbandry

1. (noun) a long narrow natural elevation or striation

• elevation
• natural elevation

2. (noun) any long raised strip

• convex shape
• convexity

3. (noun) a long narrow natural elevation on the floor of the ocean

• formation
• geological formation

4. (noun) a long narrow range of hills

• formation
• geological formation

5. (noun) any long raised border or margin of a bone or tooth or membrane

• appendage
• outgrowth
• process

6. (noun) a beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters

• beam

7. (verb) extend in ridges

• continue
• cover
• extend

8. (verb) plough alternate strips by throwing the furrow onto an unploughed strip

• plough
• plow
• turn

9. (verb) throw soil toward (a crop row) from both sides

• throw

10. (verb) spade into alternate ridges and troughs

• spade

11. (verb) form into a ridge

• form
• shape

1. (noun) a long narrow natural elevation or striation

• bank
• bar
• dune
• sand dune
• esker
• ledge
• shelf
• reef
• ripple mark

2. (noun) any long raised strip

• corrugation
• raphe
• rhaphe

3. (noun) a long narrow range of hills

• arete
• hogback
• horseback

4. (noun) any long raised border or margin of a bone or tooth or membrane

• superciliary arch
• superciliary ridge
• supraorbital ridge
• supraorbital torus

1. (verb) extend in ridges

• ridgeline