third house

American  

noun

(sometimes initial capital letters)

1. a legislative lobby.

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third house British  

noun

1. a political lobby for a special interest

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Etymology

Origin of third house

An Americanism dating back to 1850–55

Example Sentences

A third house dedicated to live experiences will consist of “For Honor,” “The Crew,” “Riders Republic,” “Brawlhalla,” and “Skull & Bones.”

From The Wall Street Journal • Jan. 21, 2026

A third house, an Airbnb rental, is still standing.

From Los Angeles Times • Dec. 17, 2025

Firefighters arrived to find two houses on fire, with the flames beginning to spread to a third house, according to the Loudoun County Fire Department.

From Washington Post • Jul. 31, 2019

John Sr. would go on to build a third house next door.

From Slate • Feb. 9, 2015

“I’ve got someone on the inside. Turn here. He’s the third house on the left.”

From "Made You Up" by Francesca Zappia