代

also 世

1. noun life; lifetime
2. age; era; period; epoch; generation
3. reign; rule

しろ

1. noun substitution
2. material
3. price
4. margin (e.g. for stapling, etc.); area required for something
5. archaic shiro (unit of land area equal to one-fiftieth of a tan; approx. 19.83 m.sq.)

だい

1. noun, suffix charge; cost; price
2. generation; age; (school) year; cohort; reign
3. geology era
4. after someone's name or title a representative of; on behalf of; for (someone)
5. used after a phone number switchboard number
6. counter counter for decades of ages, eras, etc.
7. counter for generations (of inheritors to a throne, etc.)
8. noun, abbreviation proxy application company
9. abbreviation, used in dictionaries, etc. pronoun