1 to hoard

2 to collect

3 collection

4 to bookmark (Internet)

1 cave

2 hole

3 zero (unambiguous spoken form when spelling out numbers)

4 classifier: 个 gè

1 Tibet

2 Xizang 西藏

1 Tibet

2 Xizang or Tibetan autonomous region 西藏自治區|西藏自治区

1 to hide

2 to conceal

3 to mask

4 to shelter

5 to harbor (i.e. keep sth hidden)

6 to hide oneself

7 to lie low

8 to nestle

9 hidden

10 implicit

11 private

12 covert

13 recessed (lighting)

1 lit. cutting one's stomach to hide a pearl (idiom)

2 fig. wasting a lot of effort on trivialities

1 to harbor evil intentions (idiom); concealing malice

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.