Synonyms|162Antonyms|1|Broader|8Narrower|1Related|41

133 entries under noun topic. ×

4
oxygen(element, gas)
2
He
2
gas
2
rarefaction
1
nitrogen(element, gas)
1
hydrogen(element, gas)
1
arsenic
1
astatine
1
berkelium
1
beryllium
1
bismuth
1
boron
1
bromine
1
butane
1
cadmium
1
calcium
1
californium
1
carbon
1
cerium
1
cesium
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APASmart Define. (2015). helium thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/helium/thesaurus/synonyms
ChicagoSmart Define. 2015. "helium thesaurus" https://smartdefine.org/helium/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, helium thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/helium/thesaurus/synonyms>.
MLASmart Define. "helium thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/helium/thesaurus/synonyms>