an origin, cause / a type, class

counter for number of kinds or types

an origin, cause / a type, class / an interest, appeal

a seed / a kind, type, sort, class, or category / (taxonomy) a species

one day

one, 1 / the first in order, foremost / the beginning / the best / a kind of; one of something / (card games) an ace / unity / the bottom string of a shamisen or other Japanese musical instrument

each person

Kyūjitai form of 貝殻: shell; seashell

a Triton's trumpet (Charonia tritonis) shell used in ancient times as a horn to signal troop movements

a Japanese cockle, an egg cockle: an edible marine bivalve mollusc of family Cardiidae, species Fulvia mutica