let's see; what have we got here

which (of three or more) / which one /

Nothing

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

middle, medium / average; neither good nor poor / during; being in the process of doing / second volume of a three volume set

being in the process of doing

a surname / a female given name / a surname

(mahjong) red dragon (tile)

China or Chinese; Sino- (prefix)