Chief
Chief noun - The main or greater part of something as distinguished from its subordinate parts.
Second-in-command is an antonym for chief.
Nearby Word: chiefly
Second-in-command
Second-in-command noun - Someone who relieves a commander.
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Synonyms for Second-in-command
Both words in one sentence
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He's also a ruthless hitman, chief enforcer, and the all-round trusted second-in-command of a Mafia don.
Source: Good Scars, Evil Scars - Ron Paul serves Secretary-General (chief of staff and second-in-command).
Source: Literature / Reds -
Uhura takes command of the ship and leads a landing party to rescue the male senior officers with Nurse Chapel as Chief Medical Officer and second-in-command.
Source: You Are in Command Now
Cite this Source
Second-in-command and Chief. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/chief/second-in-command
Chief & Second-in-command. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/chief/second-in-command>.
Second-in-command or Chief. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/chief/second-in-command.