Costello

American  

[kos-tl-oh, ko-stel-oh] / ˈkɒs tlˌoʊ, kɒˈstɛl oʊ /

noun

1. John Aloysius 1891–1976, Irish political leader: prime minister of the Republic of Ireland 1948–51, 1954–57.

2. Lou Louis Francis Cristillo, 1906–59, U.S. actor, half of the comedy team of Abbott and Costello.

---

Costello British  

/ kɒˈstɛləʊ /

noun

1. Elvis, real name Declan McManus. born 1954, British rock singer and songwriter. His recordings include This Year's Model (1978), "Oliver's Army" (1979), Spike (1989), Brutal Youth (1994), and When I Was Cruel (2003)

---

Example Sentences

Derek Horstmeyer is a professor of finance and director of the Future of Finance Lab at Costello College of Business, George Mason University, in Fairfax, Va.

From The Wall Street Journal • Apr. 29, 2026

Arguing over the name of a great train robber, in the midst of more serious business, Debbie and William slide into what amounts to an Abbott and Costello routine.

From Los Angeles Times • Feb. 12, 2026

The Costello Music 20th anniversary tour was planned to celebrate two decades since the release of their debut album of the same name.

From BBC • Feb. 2, 2026

“It provides vital protection at delivery and in the days and weeks after birth, when infants may be exposed to caregivers with unrecognized infection,” Costello said.

From Salon • Dec. 12, 2025

I can’t even imagine what Jack Costello and his wife are going through tonight.”

From "Tangerine" by Edward Bloor