Young players of the classic word game Scrabble, perhaps disenfranchised by its decade-old lexicon, can ‘chillax’ now that this multi-generational favourite is being updated to speak the language of the millennials.

The fifth edition of the Official Scrabble Players Dictionary, published by Merriam-Webster, went on sale yesterday and includes 5,000 new words that editors say will help the 66-year-old game stay relevant.

Some older players and Scrabble purists might find the inclusion of words like bromance and selfie to be a buzzkill because some of the additions seem so fresh.

But most of the additions are likely to be long-studied and time-tested, with obvious staying power, said Grant Barrett, a San Diego dictionary editor and co-host of the nationwide public radio show A Way with Words.

“The list is, to me, a great step forward,” Barrett said. “I think you’ve got to add new words. Otherwise you risk this turning into an archaic game that nobody wants to play because the daily language isn’t accepted there. It’s got to keep up.”

I think you’ve got to add new words. Otherwise you risk this turning into an archaic game that nobody wants to play

The publishing house this week released a sample of the new words, which add 30 pages to the dictionary last updated 10 years ago.

In addition to bromance, chillax, selfie and buzzkill, the list includes terms like: hashtag, commonly used with Twitter; dubstep, an electronic dance music that has gained popularity in the past few years; texter, referring to one who texts; and meh, an expression of ambivalence used on social media and in text messaging.

New additions such as webzine and frenemy and funplex have been around a decade or two and may feel a little closer to Gen X terminology. The same goes for mixtape and beatbox, also in the new book, which took their places firmly in the American vernacular by the end of the 1980s but have stayed current in spite of changes in technology and pop culture.