musketeer

noun

1. (historical)A foot soldier armed with a musket.
2. (historical)In 17th- and 18th-century France, a member of the royal household bodyguard.
3. A comrade or fellow.

   “Reuniting the cast of Trainspotting for a new adventure 21 years on could have gone badly. The BBC’s misjudged This Life + 10, bringing the cast of the iconic 90s TV drama back together, is a case in point. But Boyle and his four musketeers give it just the right frantic, jaded energy and manic anxiety.”

4. (informal)A fan, supporter or partisan of Elon Musk.

   “This was the rock that Musk and his Musketeers planned to build their company on.”

   “Mr Vance comes across as a “Musketeer”, someone who believes in Mr Musk’s power to reshape the world.”

   “The young Musketeers, who apparently have your personal information at their fingertips, aren’t just inexperienced – they appear completely unqualified.”