offsite adjective 1adverb 1noun 1forms 1 adjective1 •Away from a main location; in a place not owned by a particular organisation. adverb1 •Away from a particular site.Several overnight weekend possessions were required to crane in new bridges and various other parts of the buildings which were manufactured offsite. — 2024 noun1 •A group outing or meeting that takes place outside of the office.They went bowling for their team offsite. formsoffsites