1. (pronoun) this; these
2. (bound form) this; the (followed by a noun)
3. (bound form) this; these (followed by a classifier) (in this sense, commonly pr. zhèi, esp. in Beijing)

1. joint; node
2. (bound form) section; segment
3. solar term (one of the 24 divisions of the year in the traditional Chinese calendar)
4. seasonal festival
5. (bound form) to economize; to save
6. (bound form) moral integrity; chastity
7. classifier for segments: lessons, train wagons, biblical verses etc
8. knot (nautical miles per hour)

1. stair
2. staircase

classifier: 個

1. echo
2. sound
3. noise
4. to make a sound
5. to sound
6. to ring
7. loud
8. classifier for noises