
Selfie was first spotted on an Australian blog in 2002 and came in ahead of contenders "binge-watch," "showrooming" and "twerk," the British dictionary publisher said online.
"Binge-watching" is viewing several episodes of a television programme at one go. "Showrooming" is checking a product in a shop before buying it online. "Twerk" is to twirl your bottom in a sexually suggestive dance.
The word was "selfy" initially but "selfie" is the dictionary spelling.
"The use of the diminutive -ie suffix is notable as it helps to turn an essentially narcissistic enterprise into something rather more endearing," Oxford Dictionaries said in a statement.
The publisher's Oxford English Dictionary is considered the most authoritative compilation of British English vocabulary and spelling.