Longman Dictionary of Contemporary English
Wiktionary
n. (context US English) A small enclosed compartment where a voter may register a vote in private; it may house some voting machine, or just have a pencil for marking a voting slip.
WordNet
n. a booth in which a person can cast a private vote
Wikipedia
A voting booth or polling booth (in British English) is a room or cabin in a polling station where voters are able to cast their vote in private to protect the secrecy of the ballot. Commonly the entrance to the voting booth is a retractable curtain. Usually access to the voting booth is restricted to a single person, with exceptions for voters requiring assistance.
Voting machines generally use either a voting booth or some other form of privacy cover to obscure voters from the view of others.
Usage examples of "voting booth".
In the words of General Steiner's famous aphorism: War is an extension of the disagreement from the voting booth to the battlefield.
She walked to the voting booth in a daze, marking her ballot quickly, almost slashing the pen across the slot to reelect President Andrews, then slid the ballot into the reader for tabulation and headed for her aircar.
Early on the morning of November 4, as Truman was leaving a voting booth in Independence, Missouri, the National Security Agency came to life.
The first hag looked at me with glaring alarm, as if an alien had walked into the voting booth.
Erin couldn't remember the last time she'd stood in a voting booth.
He entered another pseudo voting booth and put earphones over his head.
Harris and Bush knew that removing the names of ex-felons from the voter rolls would keep thousands of black citizens out of the voting booth.