幾つ【いくつ】
how many, how old
幾分【いくぶん】
somewhat, to some extent, to some degree, some, part, portion
幾ら【いくら】
how much, something over, and something, -odd, however (much), no matter how
幾何【きか】
geometry
幾何学【きかがく】
geometry
幾重【いくえ】
piling up, multiple layers
幾多【いくた】
many, numerous