Dictionary.com
Thesaurus.com

two-way mirror

British  

noun

  1. a half-silvered sheet of glass that functions as a mirror when viewed from one side but is translucent from the other

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“The movie is interested in the sadness, loneliness or perhaps even sinister nature of emotionally investing so deeply in fandom,” Schoenbrun says, likening it to a two-way mirror.

From Los Angeles Times • Apr. 30, 2024

Thrilling, but also cortisol-spiking; the sense of being trapped like animals in a zoo is intensified by an obsidian two-way mirror on Wilson Chin’s spartan set.

From New York Times • Feb. 1, 2024

At best, you’re on the other side of a two-way mirror, hoping the disease really can’t see you.

From Washington Post • Feb. 16, 2022

This is usually done in an observation laboratory, complete with video-monitoring equipment and a two-way mirror.

From Seattle Times • Jan. 9, 2020

He leans against it, arms folded, and I look past him, searching for the hidden two-way mirror.

From "All The Bright Places" by Jennifer Niven