Snapchat Prepares $20 Billion IPO, Launches Video Glasses

initial – adj. occurring at the beginning of something

app – n. a computer program that performs a special function

animation – n. a drawing, pictures, etc., shown quickly one after another

hardware – n. machines or equipment used inside computers or together with electronic devices

augmented reality – n. a technology that superimposes a computer-generated image on a user's view of the real world.