middle / in

middle / inside / in

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)

to turn on, to switch on

zero on a test etc., no points earned / freezing point / zero (value of a function’s independent variables when the value of the function is zero)

to explore someone else's opinion, to sound out