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Use "interactions" in a sentence
"The idea of introducing communicators in interactions is an old one in physics."
"Behind all our interactions is a shared belief in the "nourishment loop": your wants, needs and desires are as important as mine, my wants, needs and desires are as important as yours."
"I think a large part of the creative process is seeing the logical extension of certain interactions; the better writers are merely those who have a good grasp on their characters."