Cases of word usage

1) the period or state of being adult (adulthood)

2) (a musical part for) a person having the highest adult male singing voice or the lowest female singing voice (above tenor) (alto)

3) an adult male chicken (cock)

4) (a country with a) government in which adult citizens freely elect their political representatives to manage public affairs (democracy)

5) an adult (grown-up)

6) (often used in combinations) an adult male human being; person; the human race; a husband (man)

7) a form of a frog or toad between the time it leaves the egg to the time when it takes its adult form (tadpole)

8) (music for, a singer with) the highest normal adult male voice; (of instruments) with a range like that of the tenor voice (tenor)

9) an adult female human being (woman)