Synonyms|34Antonyms|0|Broader|0Narrower|0Related|35
0
railroad line
0
railway
0
railway line
0
railway system
0
resistance
0
subway
0
thermionic tube
0
thermionic vacuum tube
0
thermionic valve
0
tube
0
tubing
0
underground
0
underground railroad
0
underpass
0
vacuum tube
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APASmart Define. (2013). undergrounding thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/undergrounding/thesaurus/related
ChicagoSmart Define. 2013. "undergrounding thesaurus" https://smartdefine.org/undergrounding/thesaurus/related (accessed September 21, 2026).
HarvardSmart Define 2013, undergrounding thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/undergrounding/thesaurus/related>.
MLASmart Define. "undergrounding thesaurus" 19 May 2013. Web. 21 September 2026. <https://smartdefine.org/undergrounding/thesaurus/related>