fun·da·ment 
(fŭndə-mənt)
(fŭndə-mənt)n.
1.
a. The buttocks.
b. The anus.
2. The natural features of a land surface unaltered by humans.
3. A foundation, as of a building.
4. An underlying theoretical basis or principle: "All neighbor states ... must revise ... their policy fundaments" (C.L. Sulzberger).
[Middle English foundement, from Old French fondement, from Latin fundāmentum, from fundāre, to lay the foundation, from fundus, bottom.]
- higher law
- higher learning
- higher-up
- highest common factor
- high explosive
- highfalutin
- highfaluting
- high fashion
- high fidelity
- high-fidelity
- high finance
- high-five
- highflier
- high-flier
- high-flown
- highflying
- high frequency
- high-fructose corn syrup
- high gear
- High German
- high-grade
- high ground
- highhanded
- highhandedly
- highhandedness