Word:affirm
Definition: to state firmly or publicly that sth is true or that you support sth strongly
Part of Speech: verb
Sentence: he affirmed that we must deal with global warming
Collocation: confirm

Word: enthusiast
Definition: a person who is very interested in sth and spend a lot of time doing it
Part of Speech: noun
Sentence: there are many baseball enthusiasts in the ball park.
Collocation: addict, admirer

Word: inaugural
Definition: first, and marking the beginning of sth important, for example the time when a new leader or parliament starts work, when a new organization is formed or when sth is used for the first time
Part of Speech: noun, adjective
Sentence: Inaugural meeting of the new team was a completely failure
Collocation: admission, baptism, beginning

Word: deter
Definition: to make sb decide not to do sth or container¥¥ew doing sth, especially by making them understand the difficulties and unpleasant results of their actions
Part of Speech: verb
Sentence: punishment deters people from cheating.
Collocation:  act like a wet blanket, block

Word: ring-fence
 Definition: to protect particular sum of money by putting restrictions on it so Thea it can only be used for a particular purpose
Part of Speech: verb
Sentence: schools provide students with the internet that is ring-fenced
Collocation: budget, save money

Word: jurisdiction
Definition: authority that an official organization has to make legal decisions about sb/sth
Part of Speech: noun
Sentence: the police have no jurisdiction to go into the house without permission
Collocation: administration, area of authority

Word: capitalize
Definition: to write or print a letter of the alphabet as a capital,   to sell possession in order to change them into money
Part of Speech: verb
Sentence: He is trying to capitalize his company
Collocation: exploit,

Word: controversial
Definition: causing a lot of angry public discussion and disagreement
Part of Speech: adjective
Sentence: I have a controversial meeting in the afternoon.
Collocation: arguable

Word: pernicious
Definition: having a very harmful effect on sth/sb, especially in a way that os gradual and not easily noticed
Part of Speech: adjective
Sentence: My friend has a pernicious habit that is to  go to bed over night.
Collocation: damaging, dangerous

Word: infection
Definition: the act or process of causing or getting a disease
Part of Speech: noun
Sentence: is there any sign of infection?
Collocation: contagion