Chief
Chief adjective - Coming before all others in importance.
Usage example: our chief priority this year will be cutting the budget
Highest is a synonym for chief in principal topic. In some cases you can use "Highest" instead an adjective "Chief", when it comes to topics like main, head, essential, primary.
Nearby Word: chiefly
Highest
Highest adjective - Being at a point or level higher than all others.
Usage example: the highest flag on the pole
Mutual synonyms
Both words in one sentence
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Chief Souichiro Yagami assumes that Kougoukan must be a terrorist of the highest order who is out to embarrass the police because their can't be such corruption in his department!
Source: Hero with Bad Publicity - President is "commander in chief" of the Armed Forces, i.e., the highest-ranking position in the military.
Source: Modern Major General - Their royal guards, chief architects and highest courtiers were only partially mummified, so became less powerful and less independent wights.
Source: Supernatural Elite
Cite this Source
Highest and Chief. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/chief/highest
Chief & Highest. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/chief/highest>.
Highest or Chief. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/chief/highest.
Google Ngram Viewer shows how "chief" and "highest" have occurred on timeline