Meanings
Synonyms & antonyms
nounAny object whose actual name one does not know or cannot remember.
More synonyms by meaning
nounsomething unspecified whose name is either forgotten or not known
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
From what's this or similar.
Full word history & related roots →Cite this entry
whatsis. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/whatsis
“whatsis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/whatsis. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “whatsis,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/whatsis.
Source: whatsis on Wiktionary, CC BY-SA 4.0.