Investigation

summon somebody (to something) | summon somebody to do something (formal) to order somebody to come to you

preamble: an introductory fact or circumstance

rack up: to collect something, such as profits or losses in a business, or points in a competition

flabbergasted: ​extremely surprised and/or shocked

"Crunch through" generally means to persistently and quickly process a large amount of work, data, or obstacles, often under pressure.

sneak: to go somewhere secretly, trying to avoid being seen

accomplice: ​a person who helps another to commit a crime or to do something wrong

far-fetched: difficult to believe and unlikely to be true

contrition: ​the feeling of being very sorry for something bad that you have done

ramification: one of a number of complicated and unexpected results that follow an action or a decision

idle: (of machines, factories, etc.) not in use

peril: serious danger

reimburse: to pay back money to somebody which they have spent or lost

grievous: ​very serious and often causing great pain or difficulty

expunge something (from something) to remove or get rid of something, such as a name, piece of information or a memory, from a book or list, or from your mind

gulp: to swallow, but without eating or drinking something, especially because of a strong emotion such as fear or surprise

succinct: expressed clearly and in a few words

intimidating: ​frightening in a way that makes a person feel less confident

explicit: (of a statement or piece of writing) clear and easy to understand, so that you have no doubt what is meant

verdict: an official judgement made in court or at an inquest

roughshod: to treat somebody badly and not worry about their feelings

regent: a member of a governing board (as of a state university)

standout: a person or thing that is very easy to notice because they are or it is better, more impressive, etc. than others in a group

critique: ​a piece of written criticism of a set of ideas, a work of art, etc.

the advent of something/somebody the coming of an important event, person, invention, etc.

conciliatory: ​having the intention or effect of making angry people calm

blot: ​a spot or dirty mark on something, made by ink (= colored liquid in a pen), etc.

hamper somebody/something to prevent somebody from easily doing or achieving something

pursuit: the act of looking for or trying to get something

admonish: to tell somebody strongly and clearly that you do not approve of something that they have done

parlance: a particular way of using words or expressing yourself, for example one used by a particular group

Bill Gates "Source Code"

Online Dictionaries Used:

hk.dictionary.search.yahoo.com

www.oxfordlearnersdictionaries.com