Fake news, a term heavily popularised by US President Donald Trump, has been named the word of the year by Collins dictionary due to its widespread use around the world. <br/><br/>The UK-based dictionary writer found that the use of this word registered a 365 per cent rise in the last 12 months.<br/><br/>Defined as "false, often sensational, information disseminated under the guise of news reporting", fake news takes over from Brexit – which was named the definitive word last year after the June 2016 referendum in favour of the UK's exit from the European Union.<br/><br/>Other words on 2017 shortlist included "genderfluid", defined as not identifying exclusively with one gender rather than another; "fidget spinner", the toy being twirled by children around the world; and "gig economy" – the term for a system of casual, unstable employment that firms like Uber are associated with.<br/><br/>All new words and meanings from the year will be added to CollinsDictionary.com and considered for inclusion in future print editions of the dictionary.