mono- + rail

Wikipedia logo
Wikipedia logo
The Simple English Wikipedia has an article on:

Word parts change

Pronunciation change

Noun change

Singular
monorail

Plural
monorails

 
A type of monorail
  1. (countable) A monorail is a railroad system where the trains run on one rail.
  2. (countable) A monorail is a train that runs on such system.