higher-speed rail
A type of railway system based on existing infrastructure upgraded to allow passenger…A type of railway system based on existing infrastructure upgraded to allow passenger train speeds typically between 80 and 120 miles per hour.
Meaning
1 senses(US, uncountable)A type of railway system based on existing infrastructure upgraded to allow passenger train speeds typically between 80 and 120 miles per hour.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable