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teenager – n. someone who is between 13 and 19 years old
app – n. a smartphone program that performs a special function
artificial intelligence – n. the power of a machine to copy intelligent human behavior
automated – adj. operated by machines or computers instead of people
bullying – n. the act of frightening, hurting or threatening a smaller or weaker person
mood – n. a person's emotional state
stress – n. a state of mental tension and worry caused by problems in your life, work or something else
crowdsourcing – n. the practice of getting input into a task or project by enlisting the help of many people, usually via the Internet
typing – n. to write with a computer keyboard or typewriter
