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Synonyms for Introduction (same or very similar meaning)

WordNet sense 1 (formally making a person known to another or to the public):
intro, presentation

WordNet sense 2 (the act of starting something for the first time; introducing something new):
creation, foundation, initiation, innovation, instauration, institution, origination, founding

WordNet sense 3 (the act of beginning something new):
debut, entry, launching, unveiling, first appearance

WordNet sense 4 (the act of putting one thing into another):
insertion, intromission


From the ODE community, based on WordNetadd/edit