Base

ベース

bēsu

(cooking, painting, pharmacy: basic but essential component or ingredient)

司令部

shireibu

(headquarters)

基

moto

(something from which other things extend)

基地

kichi

(permanent structure for housing military)

基礎

kiso

(something from which other things extend)

塁

rui

(baseball: one of the three places that a runner can stand in safety)

塩基

enki

(chemical compound that will neutralize an acid)

底

tei

(math: number raised to the power of an exponent)