What does cataloguing mean?
Cataloguing is the process of systematically listing, describing, and classifying items so that they can be identified and retrieved with ease. Though it can apply to any kind of inventory — a collector sorting stamps, a researcher organizing field notes — it is most closely associated with libraries, archives, and museums, where cataloguing follows formal professional standards governing how each item is described. The word is the gerund of the verb catalogue (spelled catalog in the United States, which accordingly uses the single-l spelling cataloging). It connotes orderliness, thoroughness, and scholarly care, and it sits within a wider family of terms including catalogue, cataloguer, and catalogue card. In an era of searchable digital databases, traditional cataloguing remains the backbone of how large collections are organized and made discoverable.
The action or process of creating a systematic, descriptive list of items, especially in a library, archive, or museum context where established standards govern how materials are described.
"Cataloguing of the new acquisitions was completed before the library reopened."
As a gerund, it is uncountable and takes no plural. British spelling doubles the l; American spelling does not.
Present participle of the verb catalogue: to enter items into a systematic list or record, describing and often classifying each one.
"They are cataloguing the manuscripts one shelf at a time."
Brits write it 'cataloguing' with two l's, Americans write 'cataloging' with one — one of the quiet spelling wars that divides the English-speaking world.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of cataloguing
The word derives from the late Latin catalogus, borrowed from the Greek katalogos, meaning "a list or register," formed from kata- ("down" or "thoroughly") plus legein/logos ("to gather, count, or speak"). Catalogue entered English from French in the 15th–16th centuries, and its derived forms followed. The same Greek root of logos gives English several other familiar words, including dialogue, monologue, prologue, and logic.
Related word forms
How cataloguing is actually used
"Cataloguing" (double l) is the standard British spelling, while "cataloging" (single l) is standard American usage, following each region's treatment of the base word catalogue/catalog. As a gerund it functions as an uncountable noun, so it takes no plural. The term carries neutral-to-positive connotations of orderliness and scholarship.
Easily confused with cataloguing
"Catalog" (US spelling) or "catalogue" (British spelling) is the noun or base verb for a list itself, while "cataloguing" is the act or process of creating such a list.