1 (two, three etc) -fold

2 times (multiplier)

3 double

4 to increase or multiply

1 to double

2 to redouble

1 pagoda

2 tower

3 minaret

4 stupa (abbr. loanword from Sanskrit tapo)

5 classifier: 座 zuò

1 pyramid (building or structure)

1 twice the effort for half the result

1 half the work, twice the effect (idiom); the right approach saves effort and leads to better results

2 a stitch in time saves nine

1 brimming with confidence (idiom)

1 lit. vitality a hundredfold (idiom); refreshed

2 one's vigor thoroughly restored

1 sand grains accumulate to make a tower a tower (idiom); by gathering small amounts one gets a huge quantity

2 many a mickle makes a muckle