Co
Co noun - A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.
Cos
Cos noun - Ratio of the adjacent side to the hypotenuse of a right-angled triangle.
Co and cos are semantically related in person topic. Sometimes you can use "Co" instead a noun "Cos", if it concerns topics such as agreement, person who manages an organization, leader of military or other organization, officer in command.
Mutual synonyms
Cite this Source
Cos and Co. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/co/cos
Co & Cos. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/co/cos>.
Cos or Co. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/co/cos.
Google Ngram Viewer shows how "co" and "cos" have occurred on timeline