English-English Dictionary

Meaning of the word "main line" in English

What does "main line" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

main line

US /ˈmeɪn ˌlaɪn/
UK /ˈmeɪn ˌlaɪn/
"main line" picture

Noun

1.

a principal railway line

Example:
•
The express train runs on the main line.
•
Repairs to the main line caused significant delays.
2.

a principal pipeline or conduit for water, gas, or electricity

Example:
•
A burst main line caused a widespread power outage.
•
The city is upgrading its water main lines.
3.

the most important or essential part of something

Example:
•
Let's get to the main line of the argument.
•
The main line of his research focuses on climate change.
Synonym:
coreessencegistcruxheart
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Related Word:
mainlinelinedliningA-linemain courseMaine Coon