Fasten
Fasten verb - To cause (something) to hold to another.
Usage example: use this paper clip to fasten your picture to the application form
Unite is a synonym for fasten in buckle topic. In some cases you can use "Unite" instead a verb "Fasten", when it comes to topics like make secure.
Mutual synonyms
Cite this Source
Unite and Fasten. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/fasten/unite
Fasten & Unite. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/fasten/unite>.
Unite or Fasten. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/fasten/unite.
Google Ngram Viewer shows how "fasten" and "unite" have occurred on timeline