workhorse
/ˈwɝkˌhoɹs/ noun C2- A horse used primarily for manual labor: a draft horse (draught horse). · Near-synonym: carthorse
- A person or piece of equipment that performs a lot of work, especially one heavily relied upon to perform consistently and regularly. · Those old machines are not very glamorous, but even 20 years after their introduction, they are still the workhorses of the industry.
Plural workhorses
Learn workhorse in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.