“Despair” means great suffering or sadness, which is similar in meaning to "anguish." The prefix "de-" is often used to mean down, going away, such as in “descend,” which means dropping down or “despair,” which means going down into the pits of sadness. To provide further help, “jubilation” means great happiness; “denigrate” means put down, make someone feel worse; “disadvantage” means difficulty, shortcoming; “ironic” means not serious, intended to mock something. 

The prefix "sync-" means to act together, to be unified. When we “synchronize” we make things work at or on the same time. For instance, we could synchronize our watches so that the time on them reads the same. This is closest in meaning to “coordinate.” The prefix "co-" is used similarly to the prefix "sync-." To provide further help, “detract” means take away from something; “debacle” means catastrophe, something that has gone horribly wrong; “assailable” means able to be attacked or conquered.

The prefix "ac-" means sharp and is used in words like “acute,” which can be used to describe a sharp mind. The word “accurate” means sharp as in correct, on the money, precise. When you fire a shot and it goes exactly where you want, we call this “precise” or “accurate.” To provide further help, “incumbent” means person already in a position of power; “sporadic” means random, infrequent; “benevolent” means good-natured; “malevolent” means bad-natured.

The prefix "com-" means with or together. Thus, it makes sense that the word “combine” means merge together. So, the correct answer is "merge," because "merge" is the answer choice closest in meaning to "combine." None of the other answer choices are close in meaning to "combine": “access,” when used as a verb, means be able to use; “retort” means answer back in an argument, often in an incisive or angry way; and “outline” means sketch or draw up a plan for something; and "fight," when used as a verb, means get into a physically violent dispute with.

The prefix "per-" means through, and the word “perceive” means become aware of something or notice something through sight. This means that the correct answer is “notice.” None of the other answer choices are close in meaning to "perceive": “seclude” means make a person or oneself be apart from others; “justify” means give logical reasons for; “amplify” means increase or intensify; and “consider” means carefully think about.

The prefixes "mis-" and "mit-" are used often to mean send. The word “missile” means something sent flying through the air, often as a weapon; this is closest in definition to “projectile,” a word that means something propelled into and through the air. None of the other answer choices are close in meaning to "missile": “combat” is physical fighting; a “replica” is an exact copy; a “maneuver” is a movement that is difficult to perform; and an “antagonist” is a villain in a story that opposes the hero.

A “sequel” is a movie or book that continues a story established in an earlier movie or book. Like words like "sequence," "sequel" is derived from the Latin word "sequi," which means follow. This makes sense; a sequel follows a previous story or movie in a sequence. "Continuation" is the answer choice closest in meaning to "sequel," so "continuation" is the correct answer. As for the other answer choices, none are close in meaning to "sequel": a “motorcade” is a procession of cars associated with a specific event; a “prequel” is a movie or book that tells the story of what happened before an already established movie or book; "series" means a group things in a specific order or an extended story told over the course of several individual books or movies; and a "chapter" is an individual division of a book.

The prefix "dynam-" means related to force or power, so something that is “dynamic” is active or forceful. As for the other answer choices, “quaint” means old-fashioned in a good way; “timid” means shy or meek; “ostentatious” means overtly extravagant and luxurious; and “damaging” means harmful. 

"Terrestrial" means having to do with the earth or living on land, which makes sense, as the word "terrestrial" is derived from the Latin word "terra," which means Earth. As for the other answer choices, "lunar" means having to do with the moon; "solar" means having to do with the sun; "cosmic" means having to do with outer space; and "spectacular" means impressive or excellent.

The prefixes "e-"and "ex-" both mean out, as in “exit,” which when used as a verb means go out of or leave a location, or “eject,” which means emit, expel, or throw out from a specific location. That means that "expel" is the correct answer, because while "expel" can mean formally kick out of an institution, such as a school, it can also mean throw out of from a specific location. None of the other answer choices are close in meaning to "eject": “demand” means insist or command when used as a verb; “supply” means give aid or resources to when used as a verb; "insist" means refuse to take any other answer or accept any result other than the one that one desires; and "portray" means depict or characterize.