Main line
Main line noun - The principal route of a transportation system.
Trunk circuit and main line are semantically related. In some cases you can replace phrase "Trunk circuit" with "Main line", this phrases are similar.
Trunk circuit
Main line and trunk circuit are semantically related. Sometimes you can replace phrase "Main line" with "Trunk circuit", this phrases are similar.
Mutual synonyms
Cite this Source
Trunk circuit and Main line. (2016). Retrieved 2026, July 31, from https://thesaurus.plus/related/main_line/trunk_circuit
Main line & Trunk circuit. N.p., 2016. Web. 31 Jul. 2026. <https://thesaurus.plus/related/main_line/trunk_circuit>.
Trunk circuit or Main line. 2016. Accessed July 31, 2026. https://thesaurus.plus/related/main_line/trunk_circuit.
Google Ngram Viewer shows how "main line" and "trunk circuit" have occurred on timeline