25 words you might not know are trademarked

Many of the items we use every day, like zippers and escalators, were once brand names

The Oxford American Dictionary 2012 has named it's word of the year: 'GIF', verb, to create a GIF file of (an image or video sequence, especially relating to an event).
(Image credit: ThinkStock/Photodisc)

1. You might think you're riding around on a Jet Ski, but if it's not made by Kawasaki Heavy Industries, it's just a personal watercraft.

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