1 junior

2 primary

1 to escalate (in intensity)

2 to go up by one grade

3 to be promoted

4 to upgrade (computing)

1 to get promoted (at work etc)

2 promotion

1 grade

2 rank

3 status

1 level

2 grade

3 rank

4 step (of stairs)

5 classifier: 个 gè

6 classifier: step, level

1 demotion to commoner (idiom)

1 to die as in the line of duty (idiom)

1 to walk slowly up a flight of steps (idiom)

1 saving a life is more meritorious than building a seven-floor pagoda (idiom)

1 responsible and diligent (idiom)