"To get a voucher" means to receive a document or a ticket that can be exchanged for a specific product or service, often as a form of payment or discount. Full definition
The original law mandated families try public schools before getting a voucher for private school. (indianapublicmedia.org)
So students who get vouchers but aren't Catholic end up paying about $ 1,500 a year. (indianapublicmedia.org)
In the past, they said, children who lost the voucher lottery were then unable to get a voucher in subsequent years, because that would interrupt the research. (washingtonpost.com)