Meaning

noun shrubby Japanese cherry tree having pale pink blossoms

noun an extinct volcano in south central Honshu that is the highest peak in Japan; last erupted in 1707; famous for its symmetrical snow-capped peak; a sacred mountain and site for pilgrimages

originShort for Fujisaki, Aomori, Japan, where originally cultivated.

Etymology from Wiktionary, CC BY-SA 3.0