Parallelism (Grammar)

Woody Allen

Dr. Richard Nordquist is professor emeritus of rhetoric and English at Georgia Southern University and the author of several university-level grammar and composition textbooks.

Updated on August 02, 2018

In English grammar, parallelism is the similarity of structure in a pair or series of related words, phrases, or clauses. Also called parallel structure, paired construction, and isocolon.

By convention, items in a series appear in parallel grammatical form: a noun is listed with other nouns, an -ing form with other -ing forms, and so on. Kirszner and Mandell point out that parallelism "adds unity, balance, and coherence to your writing. Effective parallelism makes sentences easy to follow and emphasizes relationships among equivalent ideas" (The Concise Wadsworth Handbook, 2014) .

In traditional grammar, failure to arrange related items in parallel grammatical form is called faulty parallelism.

Etymology

From the Greek, "beside one another"

Examples and Observations

Effects Created by Parallelism

"Parallelism has the potential to create rhythm, emphasis, and drama as it clearly presents ideas or action. Consider this long, graceful (and witty) sentence that begins a magazine article on sneakers:

A long time ago—before sneaker companies had the marketing clout to spend millions of dollars sponsoring telecasts of the Super Bowl; before street gangs identified themselves by the color of their Adidas; before North Carolina State's basketball players found they could raise a little extra cash by selling the freebie Nikes off their feet; and before a sneaker's very sole had been gelatinized, Energaired, Hexalited, torsioned and injected with pressurized gas—sneakers were, well, sneakers.
[E.M. Swift, "Farewell, My Lovely." Sports Illustrated, February 19, 1990]

First note the obvious parallelism of four clauses beginning with the word before and proceeding with similar grammatical patterns. Then note the parallel list of sneaker attributes: gelatinized, Energaired and so on. This is writing with pizzazz. It moves. It almost makes you interested in sneakers! Of course you noticed the nice bit of word play—the sneaker's very sole."
(Lauren Kessler and Duncan McDonald, When Words Collide: A Media Writer's Guide to Grammar and Style, 7th ed. Thomson Learning, 2008)

Pronunciation: PAR-a-lell-izm