2019's Word of the Year ~ They

According to Merriam Webster:

"English famously lacks a gender-neutral singular pronoun to correspond neatly with singular pronouns like everyone or someone, and as a consequence they has been used for this purpose for more than 600 years. More recently, though, they has also been used to refer to one person whose gender identity is nonbinary, a sense that is increasingly common in published, edited text, as well as social media and in daily personal interactions between English speakers. There's no doubt that its use is established in the English language, which is why it was added to the Merriam-Webster.com dictionary this past September."