In the book The Cay what are all of the vocab words?

Some vocabulary Words used in the book "The Cay" by Theodore Taylor include:

1. Schooner - a sailing ship with two or more masts
2. Cistern - a tank for storing water
3. Flounder - struggle or stagger helplessly or clumsily in water or mud
4. Compassion - sympathetic pity and concern for the sufferings or misfortunes of others