"Photobomb" has triumphed as Collins' "word of the year", as the publisher launches the latest edition of the Collins English Dictionary.
The word, which means to intrude on someone else's photo without their knowledge, was first recorded in 2008, and has since become common usage after several photos of celebrities photobombing at awards ceremonies went viral.
Photobomb beat a list of other nominated words, including "bake-off", "Tinder", "norm core" and "devo max".
The latest edition of the Collins English Dictionary, the 12th, is published today as a £45 hardback, and is also available as a Kindle e-book and iOS app. It includes 50,000 words added since the eleventh edition, totalling 722,000 entries altogether. It also includes an introduction titled "The Joy of Dictionaries" by author Mark Forsyth, and commentary from writer and columnist Lucy Mangan.