being (noun) = a person or creature that exists
"A nuclear war would kill millions of living beings."
"Strange beings from outer space are still a popular subject for sci-fi films."
being (noun) = the state of existing
"We do not know exactly how life first came into being (= began to exist.)"
being (verb) = present participle of "be" (be, being, is, are, was, were, been)
"Being afraid of the dark, she always slept with the light on."