Shirabe
底

底そこ

Common Noun family or surname
English jmdict
1
noun (common) (futsuumeishi) bottom;sole
靴の底がすり減ってしまった。
The soles of my shoes are worn.
English jmnedict
1
Soko

底てい

Noun
English jmdict
1
noun (common) (futsuumeishi) mathematics base (logarithmic, exponential, number system);radix
2
noun (common) (futsuumeishi) geometry base (triangle, cone, cylinder, etc.)
3
noun (common) (futsuumeishi) type;kind;extent;degree