It's faster than opening Word and typing it in, or opening a dictionary ap. (I don't think I've cracked open a dead-tree dictionary even once in the last couple of years, but I look up words several times a week.)
Love this joke! 14 years ago a guy came up to me at a party and said"What's fun about THAT (holding up a fun sized mars bar) to me a fun sized mars bar would be THIS BIG!!"(gestures full arm length) I thought he had a witty sense of humour so I married him!