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The term synergy comes from the word working together. A synergy is an interaction between two or more things that combine to create an effect that is different in some way from the two combined effects acting in isolation. Synergy is a prevalent phenomena in all types of systems that arises from the concerted action of multiple factors producing an amplification or cancellation effect compared with individual actions alone.

A positive synergy is when two things combine in a constructive fashion arising when the parts are both different from each other but also uniquely fitting together. Examples being the pollination process between bee and flower, or two companies working together that have different but complementary capacities. A negative synergy is a form of interference. Two people talking at the same time is a form of negative synergy.