What is another word for big rig?
Pronunciation: [bˈɪɡ ɹˈɪɡ] (IPA) 
When it comes to referring to large trucks used for hauling goods, there are several synonyms for the term "big rig." One popular alternative is "semi-truck," which is often used interchangeably with "tractor-trailer." Another is "18-wheeler" or "semi-trailer truck," which refers to the number of wheels on the vehicle. Some people may also use the term "juggernaut" to refer to particularly massive trucks. Other slang terms for big rigs include "beast," "iron pony," "tractor-trailer," and "big diesel," though these may be less commonly used. Ultimately, the choice of synonym may vary depending on the speaker's region, profession, or personal preference.
