Letters that make rails
s, a, l, r, i are letters that make 'rails'
brails, drails, frails, grails, trails are words created by adding a letter to 'rails'
1 possible definitions for 'rails'
Under this definition, rails is a noun and has the following properties:
'rails' can be a type of bar.
third rail is a type of rails.
'rails' can be a part of railroad track, railroad, railway, tramline, tramway, streetcar track.