1. underestimate
If you underestimate something, you do not realize how large or great it is or will be.
e.g. None of us should ever underestimate the degree of difficulty women face in career advancement.
2. gut
A person's or animal's gut are all the organs inside them.
e.g. By the time they finish, the crewmen are standing ankle-deep in fish guts.
3. contingent
A contingent police, soldier, or military vehicles is a group of them.
e.g. Nigeria provided a large contingent of troops to the West African Peacekeeping Force.
