1 to block up (a road, pipe etc)

2 to stop up (a hole)

3 (fig.) (of a person) choked up with anxiety or stress

4 wall (literary)

5 (classifier for walls)

1 traffic jam

2 (of traffic) to get congested

1 to add

2 to increase

3 to replenish

1 to block up

1 to clog up

2 blockage

1 lit. like a tiger that has grown wings

2 with redoubled power (idiom)

1 A small hole not plugged will make you suffer a big hole (idiom); A stitch in time saves nine.

1 a small hole not plugged will give you grief when it gets bigger (idiom)

2 a stitch in time saves nine

1 If you don't plug the small hole, the big hole will be hard to repair (idiom); A stitch in time saves nine.

1 lit. contribute bricks and tiles for a building (idiom)

2 fig. to do one's bit to help