noun. an idea or product which is cultivated as part of or in correlation with a task or initiative.

TIE-IN: "A tie-in, with regard to advertising, would be the fundamental elements in a film, such as setting, clothing, and soundtrack."
Cite this page: N., Pam M.S., "TIE-IN," in PsychologyDictionary.org, April 29, 2013, https://psychologydictionary.org/tie-in/ (accessed August 6, 2020).