The term had the most online dictionary lookups of any word, Merriam-Webster said on its website

The trend behind the selection of “they” as the Word of the Decade, was recognising its growing use to refer to a person whose gender identity is non-binary.

The Bulletin of the Atomic Scientists said the world was at its closest to annihilation since the height of the Cold War due to world leaders' poor response to threats of nuclear war.