What does alphabetise mean?
Alphabetise is a verb meaning to arrange items — such as names, titles, or terms — in the order of the letters of the alphabet, typically running from A to Z. It is the everyday workhorse of organisation: librarians alphabetise catalogues, administrators alphabetise mailing lists, and editors alphabetise indexes and bibliographies. The word carries no particular emotional connotation; it simply denotes a systematic, order-imposing action, and it can be applied to physical objects (files, folders, books) or to abstract lists and datasets. Spelling varies by region: British English writes "alphabetise" with an -s-, while American English prefers "alphabetize" with a -z-, though both are pronounced identically. The word derives from "alphabet," which itself comes from the Greek names of the first two letters, alpha and beta — making this one of the rare English words whose name transparently encodes the very sequence it describes. Related forms include the adjective "alphabetical" and the noun "alphabetisation."
verbTo arrange items, such as words or names, in the order of the letters of the alphabet.
- To arrange words, names, or other items in alphabetical order.
"She spent the afternoon alphabetising the library's card catalogue."
"Please alphabetise the guest list before printing the seating chart."
"The archivist carefully alphabetised thousands of index cards by author surname."
The word literally contains its own subject: "alphabetise" begins with the first two letters of the very sequence it describes — alpha and beta.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of alphabetise
Alphabetise comes from "alphabet," which entered English from Latin "alphabetum" and ultimately from Greek, where the term combined the names of the first two letters, alpha (α) and beta (β). The verb form arose much later, in the modern era, as English speakers sought a concise way to describe the act of arranging items in letter order. Its sibling adjective "alphabetical" shares the same root, as does the more scholarly "abecedarian," a word for one learning the alphabet or arranged in letter order. The British -s- spelling versus the American -z- spelling reflects the broader pattern seen in pairs like "organise" and "organize."
Related word forms
How alphabetise is actually used
"Alphabetise" is the standard British spelling; American English typically uses "alphabetize" with a -z-. The verb is neutral in tone and common in everyday, academic, and professional contexts alike.
Easily confused with alphabetise
"Alphabetical" is an adjective describing something already arranged in letter order, while "alphabetise" is the verb meaning to perform that arrangement.