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mobile - adj. able to be moved; movable
address - n. a place where someone or something can be reached
quiz - n. a short test
infographic - n. a sign or image representing information or knowledge
scan - v. to use a machine or device to read or copy something into a computer
error - n. something that is not correct; a wrong action or statement
flashcard - n. a learning tool with words, numbers or pictures
engage - v. to give serious attention to something
boil down to (something) - expression. to be reduced to its main points
