Noun: thesaurus
| Singular | thesaurus |
| Plural | thesauri; thesauruses |
Sample Sentences
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"Roget" is the leading brand name for a print English thesaurus that lists words under general concepts rather than just close synonyms.
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As reference books go, the thesaurus has had a somewhat checkered history, in fact, and has probably occasioned as much bad writing as good. [2008 April 18, Charles Mcgrath, “The Keeper (See: Steward, Caretaker) of Synonyms”, in New York Times:]
Nouns inflected like thesaurus
renal calculus,
pylorus,
prolapsus,
parahippocampal gyrus,
hyperradius,
succubus,
scarabaeus,
colossus,
eucalyptus,
papyrus,
disfocus,
polypus,
phallus,
solidus,
silurus,
lenticular nucleus,
dinosaurus,
chorepiscopus,
ankylosaurus,
fusiform gyrus, etc. (List truncated at 20 nouns)
Etymology
16th century, borrowed from Latin thēsaurus, from Ancient Greek θησαυρός (thēsaurós, “storehouse, treasure”); its current English usage/meaning was established soon after the publication of Peter Roget's Thesaurus of English Words and Phrases in 1852. Doublet of treasure. See: Latin Nouns '
thēsaurus', Ancient Greek Nouns '
θησαυρός'.