Cases of word usage

1) the hard, horny mouth of a bird (beak)

2) the part of the face below the mouth (chin)

3) (to make) a low, quiet laugh with closed mouth (showing satisfaction or amusement) (chuckle)

4) a kind of large river reptile with a long body and mouth (crocodile)

5) a (usually long) mouth of a river into which the tide flows (estuary)

6) an implement with two or more points (prongs), used for lifting food to the mouth etc (fork)

7) something put in or over a person's mouth to prevent her or him from speaking or crying out (gag)

8) an act of staring with the mouth open (gape)

9) the food passage from the mouth to the stomach (gullet)

10) mouth organ (harmonica)