Oxford Dictionaries picked vape, the act of smoking an e-cigarette, as their new word of the year today.

The affectionate bae and the more pragmatic contactless were runners up.

"Vaping has gone mainstream," with usage doubling in 2014 compared to 2013, editorial director Judy Pearsall said.

"The language usage of the word vape and related terms in 2014 has shown a marked increase" due to celebrities vaping and "growing public debate on the public dangers and the need for regulation", she said.

The word, which was first used in the 1980s, can be employed as a verb to mean inhaling and exhaling the vapour produced by electronic cigarettes but also as a noun to refer to the devices themselves.

It was added to OxfordDictionaries.com in August and is being considered for inclusion in the official reference Oxford English Dictionary.

E-cigarettes only began to be produced around a decade ago but the first use of the word is believed to be a 1983 magazine article by Rob Stepney which imagined the use of inhalers instead of cigarettes.

"The new habit, if it catches on, would be known as vaping," it said.