A situation where a passenger on a bus refuses to pay his fare would likely result in a conflict, confrontation, an argument. So, the correct answer is "altercation." Additionally, a "ditty" is a playful, short song; a "vocation" is an occupation, a job; an "edifice" is a building, or the side of a building; a "specter" is a ghost, a phantom.

Based on the context of this sentence you are looking for a noun that describes a departure from the norm, an anomaly, a deviation from what is expected. Also, usually the word "aberration" suggests that whatever departure from the norm that has occurred was unwelcome. Additionally, "dissent" is disagreement with authority, refusal to follow the rules; "potential" is possible ability; a "feint" is a trick, a deceptive attack meant to distract from the main attack; an "objection" is a point of disagreement, some issue raised in opposition to something.

Based on the context of this sentence you need to determine which of these is a noun that describes a crime for which someone might be imprisoned. The correct answer is "perjury" which is lying under oath, lying in court. Additionally, "lassitude" is a state of exhaustion or weariness; "ferment" is a state of agitated excitement and passion; "semblance" means likeness, having the appearance of something else; "banter" is playful teasing, making fun of someone in a friendly manner.

The context of this sentence suggests that the correct answer is a noun that means dangers, things to be wary of. So, the correct answer is "hazards." A "hazard" is a danger, an obstacle. Things can also be "hazardous," which means dangerous, unsafe. Additionally, a "hearth" is either a fireplace or a spiritual home; a "dock" is a port, a harbor, a place for ships to anchor; an "editor" is someone who reads other people's work and edits it; a "catacomb" is an underground cemetery, a crypt.

Based on the context of this sentence you know you are looking for a noun that means something like watchman, guard, military guard. So, the correct answer is "sentry." Additionally, a "refugee" is someone who flees danger in their own country to seek safety in another country; an "academic" is someone who studies, learns, and teachers for a living, a professor; a "hermit" is a person living alone who avoids human contact; a "merchant" is a trader, someone who sells goods for a living.

Based on the context of this sentence you know that you are looking for a noun that means something like insincere talk that should not be taken seriously or accepted as true. The correct answer is therefore "bombast." Someone who is "bombastic" is pompous and sounding smarter than they actually are. Additionally, "umbrage" is offense; a "tome" is a lengthy book; "frailty" is weakness; "brutality" is violence and cruelty.

The general idea of this sentence is that Nigel is going to recommend some changes to the book. Whenever we change a text (or anything that we make) so as to improve its overall quality, we make "revisions" to the text. Really, any kind of general change of something can be called revisions. Hence, there can be revised styles of cars and revisions in the color of a line of clothes.

This sentence indicates that the child needed a reason to do his work. Whenever we do something that helps to give a reason in this way, we offer an "incentive" for that person. An "incentive" is something that encourages us to undertake and complete a given task.

You likely know the word "operation" in its medical meaning. In this sense, an "operation" is a specific kind of task—the sort of thing done by doctors and surgeons. The word can have a more general meaning as well. An "operation" is any particular activity. In this sentence, it is hinted that the visitor was impressed by the overall process of the manufacturing. The word "operation" is the only general term that indicates such a process.

The key expression in the sentence is "every single day." This little phrase indicates that the sentence is discussing a kind of character trait that leads us to do something continuously and devotedly. "Discipline" is just this kind of character trait.