Courtesy
Protocols
Courtesy and protocols are semantically related in rules of conduct topic. Sometimes you can use "Courtesy" instead a noun "Protocols".
Both words in one sentence
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Off on a Technicality: Dick Reed at the start of "Re-Do", courtesy of an overworked crime lab guy making a mistake on the protocols for DNA testing.
Source: Series / Blue Bloods
Cite this Source
Protocols and Courtesy. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/courtesy/protocols
Courtesy & Protocols. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/courtesy/protocols>.
Protocols or Courtesy. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/courtesy/protocols.
Google Ngram Viewer shows how "courtesy" and "protocols" have occurred on timeline