Mail drop
Posting box and mail drop are semantically related. In some cases you can use "Posting box" instead a noun phrase "Mail drop".
Posting box
Mail drop and posting box are semantically related. You can use "Mail drop" instead a noun phrase "Posting box".
Mutual synonyms
Cite this Source
Posting box and Mail drop. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/mail_drop/posting_box
Mail drop & Posting box. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/mail_drop/posting_box>.
Posting box or Mail drop. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/mail_drop/posting_box.
Google Ngram Viewer shows how "mail drop" and "posting box" have occurred on timeline