1. to begin
2. beginning
3. to start
4. initial

classifier: 個

1. to shoot (a projectile)
2. to fire (a rocket)
3. to launch
4. to emit (a particle)
5. to discharge
6. emanation
7. emission

1. to count backwards (from 10 down to 0)
2. to count down
3. from the bottom (lines on a page)
4. from the back (rows of seats)

1. inverse number
2. reciprocal (math.)