Centering on allegations Trump falsified his company’s records to conceal the nature of hush money reimbursements, it’s the first ever criminal trial of a former U.S. president and the first of Trump’s four indictments to go to trial. It also has some unique terminology.

Here are some examples:

Hush money

DEFINITION: According to Merriam-Webster, it’s money paid so that someone will keep information secret. In other words, money that a person pays someone to hush up something.

EXAMPLE: Three payments that prosecutors say were made on Trump’s behalf to bury marital infidelity claims during his 2016 presidential campaign. They are the National Enquirer’s $30,000 payment to a Trump Tower doorman and $150,000 payment to former Playboy model Karen McDougal, and the $130,000 that Trump’s then-lawyer and fixer Michael Cohen arranged to pay porn actor Stormy Daniels.

Paying hush money isn’t illegal on its own, but authorities say the payments made to suppress stories about Trump amounted to illegal campaign contributions. Cohen pleaded guilty in 2018 to a federal campaign violation, among other unrelated crimes. The National Enquirer’s parent company, American Media Inc., entered into a nonprosecution agreement in exchange for its cooperation with prosecutors. The Federal Election Commission fined the company $187,500, declaring that the McDougal deal was a “prohibited corporate in-kind contribution.”

‘Catch and kill’

DEFINITION: As prosecutor Matthew Colangelo told jurors in his opening statement, “catch-and-kill” is when a tabloid newspaper such as the National Enquirer “buys up damaging information about someone, demands that the source sign a nondisclosure agreement to prevent them from taking that information or that story anywhere else, and then the tabloid declines to publish the story to prevent it from ever seeing the light of day.” A nondisclosure agreement is also known as a confidentiality agreement.

EXAMPLE: Tabloids typically pay sources and story subjects for information they end up publishing. But sometimes they pay for stories to prevent their publication. Former National Enquirer publisher David Pecker testified that he agreed, at a Trump Tower meeting in August 2015, to be the “eyes and ears” of Trump’s 2016 presidential campaign. Under the arrangement, Pecker said he would notify Cohen of women who were seeking to sell stories about Trump so Trump’s team could “take them off the market or kill them in some manner.”

Pecker testified that he had suppressed stories about other celebrities and politicians over the years using the same “catch and kill” methods, including actor and ex-California Gov. Arnold Schwarzenegger and golfer Tiger Woods. Pecker said he sometimes suppressed stories simply to help a friend or further his business interests, but often he did so to leverage the story subject into doing something else, like agreeing to an interview or posing for a magazine cover.

Falsifying business records

DEFINITION: This is the criminal charge that’s being decided at Trump’s New York trial. He is charged with 34 counts of falsifying business records in the first degree. It is a felony punishable by up to four years in prison, though there is no guarantee Trump would be sentenced to any time if convicted. He has pleaded not guilty.

Under New York law, a person is guilty of falsifying business records in the first degree when he makes or causes a false entry to be made in a company’s business records and does so with an intent to defraud, including intent to commit or hide another crime.

EXAMPLE: Prosecutors allege Trump misrepresented payments to Cohen in Trump’s company records as legal fees when they were actually a reimbursement for the $130,000 that Cohen arranged to pay Daniels. The records at issue include general ledger entries, invoices and checks. Prosecutors argue Trump’s actions were a way of hiding the hush money scheme and concealing other crimes arising from it, including alleged election law violations. Trump denies the allegations. His lawyers have said the payments to Cohen were for legitimate legal expenses.

Conspiracy

DEFINITION: Trump isn’t charged with the crime of conspiracy, but prosecutors at his New York trial have used the term repeatedly to describe his “eyes and ears” agreement with Pecker and the hush money arrangements that ensued.

According to Merriam-Webster, conspiring involves joining “in a secret agreement to do an unlawful or wrongful act or an act which becomes unlawful as a result of the secret agreement.” Under New York law, a conspiracy involves at least two people acting with intent to commit a crime.

EXAMPLE: Colangelo, the prosecutor, said in his opening statement that Trump’s trial involves “an illegal conspiracy to undermine the integrity of a presidential election.” To convict Trump of felony falsifying business records, prosecutors must show that he had intent to commit another crime. Assistant District Attorney Joshua Steinglass said in court that one of the crimes Trump intended to commit was a violation of a New York election law — a misdemeanor involving a conspiracy to promote or prevent an election.

Election interference

DEFINITION: Any attempt to alter the outcome of an election through nefarious means, such as fraud, voter intimidation or efforts to overturn the outcome of a race.

EXAMPLE: Prosecutors allege the hush money scheme amounted to election interference because it involved a concerted effort to hide important information from voters in order to boost Trump’s chances in the 2016 race.

Not only was the National Enquirer acting as the “eyes and ears” of Trump’s campaign, identifying negative stories so they could be suppressed, Pecker testified that the tabloid, at Cohen’s behest, printed stories that tarred Trump’s opponents. It also published stories that boosted Trump’s image.

It’s a different kind of election interference allegation from what Trump is charged with in his Washington and Georgia cases, where he’s accused of attempting to subvert his 2020 election loss to Democrat Joe Biden. Meanwhile, Trump claims that being put on trial while he’s campaigning as this year’s presumptive Republican nominee is its own form of election interference.

Gag order

DEFINITION: Generally speaking, a gag order is “a judicial ruling barring public disclosure or discussion (as by the press) of information related to a case,” according to Merriam-Webster. In Trump’s case, it’s known as an Order Restricting Extrajudicial Statements, with extrajudicial meaning outside of court.

EXAMPLE: Judge Juan M. Merchan, acting on a request from prosecutors, imposed a limited gag order on Trump on March 26. It bars the former president from making or directing other people to make public statements on his behalf about potential witnesses regarding their participation in the case. It also prohibits comments about jurors, prosecutors other than District Attorney Alvin Bragg, and any statements meant to interfere with or harass the court’s staff, prosecution team or their families.

Merchan expanded the order on April 1, barring Trump from commenting about his family or Bragg’s family. The change came after Trump assailed the judge’s daughter and made false claims about her on social media.

Last Tuesday, Trump was assessed a $9,000 fine — $1,000 for each of nine separate gag order violations that the judge identified. Prosecutors later requested an additional $4,000 penalty for what they said were additional breaches of the order.

Merchan lamented that $1,000 per violation is the maximum fine allowed by law and floated the possibility of jailing Trump if he continues to run afoul of the gag order, an unprecedented outcome for a former American president.

Trump’s lawyers insist he needs leeway to respond to criticism, including from witnesses like Cohen and Daniels, and that the gag order impedes his ability to answer questions and defend himself amid a crush of media coverage of his case and his candidacy.