• (v. t.) To concert or arrange beforehand; to settle by previous agreement. • (n.) Something concerted or arranged beforehand; a previous agreement. Found on http://thinkexist.com/dictionary/meaning/preconcert/
Pre`con·cert' transitive verb [ imperfect & past participle Preconcerted ; present participle & verbal noun Preconcerting .] To concert or arrange beforehand; to settle by previous agreement. Found on http://www.encyclo.co.uk/webster/P/145