HSK 7-9
凭证
píngzhèng名
proof; certificate; receipt; voucher
请保留付款凭证以便查询。
Qǐng bǎoliú fùkuǎn píngzhèng yǐbiàn cháxún.
Please keep the payment receipt for future inquiries.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.