pile 2 
(pīl)
(pīl)n.
1. A heavy post of timber, concrete, or steel, driven into the earth as a foundation or support for a structure.
2. Heraldry A wedge-shaped charge pointing downward.
3. A Roman javelin.
tr.v. piled, pil·ing, piles
1. To drive piles into.
2. To support with piles.
[Middle English, from Old English pīl, shaft, stake, from Latin pīlum, spear, pestle.]
pile2- Northern Cross
- Northern Crown
- Northern Dvina
- northerner
- northern flicker
- northern harrier
- Northern Hemisphere
- Northern Ireland
- Northern Irelander
- Northern Kingdom
- northern lapwing
- northern lights
- Northern Mariana Islands
- northernmost
- northernness
- northern oriole
- Northern Paiute
- northern pike
- Northern Rhodesia
- Northern Shoshone
- Northern Sporades
- northern spotted owl
- Northern Spy
- Northern Territory
- North Frigid Zone