The root "hydro" means having to do with water, so to “hydrate” is to “drink” water. “Sprint” means run quickly; “amble” meanswalk slowly; “stumble” means fall over; and “vie” means compete.

"Rabble" is a noun that means "a disorderly crowd; a mob," or when used as "the rabble," "ordinary people, especially when regarded as socially inferior or uncouth." While "rabble" may sound like "rubble," a noun that "rocks" or "debris" could be considered synonyms of, "rubble" does not mean the same thing as "rabble," so it cannot be the correct answer. "Crowd," however, when used as a noun, is the answer choice closest in meaning to "rabble," so it is the correct answer.

"Insurgent" is a word that when used as an adjective, means "rising in active revolt" or "of or relating to rebels" and when used as a noun, means "a rebel or revolutionary." So, we need to pick out an answer choice that means something like "rebel." "Loyalist" cannot be the correct answer, then, because "loyalist" means "a person who remains loyal to the established ruler or government, especially in the face of a revolt," so it is an antonym of "rebel." "Rebel" is an available answer choice, and because it is the answer choice that is closest in meaning to "insurgent," "rebel" is the correct answer.

A glutton is someone who eats or consumes too much, so "overeater" is the correct answer. "Curmudgeon" means a grumpy or bad-tempered person, "benefactor" means donator, and "abstainer" means someone who holds themself back from doing something.

A "guerrilla" is a soldier who uses surprise tactics, not to be confused with "gorilla," the animal. So, "soldier" is the correct answer.

A "buffoon" is someone who makes a fool of themselves. To help you, "youthful" means young, "ancient" means very old, and a "miser" is someone who saves all the money that they can.

A "nemesis" is an opponent, enemy, or adversary, so "opponent" is the correct answer. An "archaeologist" is a person who studies prehistoric people and their lifestyles. A "candidate" is a person who applies for a job or is nominated for a position. An "occurrence" is an event or happening. A "receipt" is a document that shows that a bill has been paid.

A "despot" is a tyrant. The best choice is "tyrant," which means an oppressive or unjust ruler. Considering the other choices, a "store" is a place where people go to make purchases, "list" means a group of things that are written down, and a "depot" is a warehouse. 

"Progeny" is another word for offspring or someone's children. To provide further help, a "professional" is someone paid for their work, whereas an "amateur" is someone not paid for work. We call the people that came before us our "ancestors," so for example, your grandfather is one of your ancestors. 

A "culprit" is the person responsible for doing something wrong or the guilty person. So, "guilty person" is the correct answer.