Synonyms|68Antonyms|5|Broader|0Narrower|0Related|55

9 entries under expression topic. ×

0
electron tube
0
railroad line
0
railway line
0
railway system
0
thermionic tube
0
thermionic vacuum tube
0
thermionic valve
0
underground railroad
0
vacuum tube
For more, visit Undergrounds on Power Thesaurus
13 years ago|1.1k views|share |citing 
APASmart Define. (2013). undergrounds thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/undergrounds/thesaurus/synonyms
ChicagoSmart Define. 2013. "undergrounds thesaurus" https://smartdefine.org/undergrounds/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, undergrounds thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/undergrounds/thesaurus/synonyms>.
MLASmart Define. "undergrounds thesaurus" 19 May 2013. Web. 20 September 2026. <https://smartdefine.org/undergrounds/thesaurus/synonyms>