noun
- Line that is the main route on a railway.
- synonyms: trunk route
- A telephone line connecting two exchanges directly. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). trunk line. Retrieved September 20, 2026, from http://smartdefine.org/trunk_line/definitions/1209272 |
| Chicago | WordNet. 2010. "trunk line" http://smartdefine.org/trunk_line/definitions/1209272 (accessed September 20, 2026). |
| Harvard | WordNet 2010, trunk line, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/trunk_line/definitions/1209272>. |
| MLA | WordNet. "trunk line" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/trunk_line/definitions/1209272> |