Meanings
adjectivetrillionth (not comparable)
- not comparableThe ordinal form of the number one trillion.
nountrillionth (plural trillionths)
plural trillionths
- The person or thing in the trillionth position.
- One of a trillion equal parts of a whole.
Synonyms & antonyms
adjectivethe ordinal number of one trillion in counting order
Similar
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
From trillion + -th (ordinal suffix).
Full word history & related roots →Translations
Czech biliontý
- biliontýTranslations
Polish bilionowy
- bilionowyTranslations
Slovak biliónty
- bilióntyTranslations
Cite this entry
APA
trillionth. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/trillionth
MLA
“trillionth.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trillionth. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “trillionth,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/trillionth.
Source: trillionth on Wiktionary, CC BY-SA 4.0.