免票 (miǎn piào) means “get in free”

More examples

博物馆凭学生证免票入场。bó wù guǎn píng xué shēng zhèng miǎn piào rù chǎng

At the museum, you can enter for free with a student ID.

A gate-opening status in which the usual admission ticket is not required.

凭学生证免票入场píng xué shēng zhèng miǎn piào rù chǎng
enter for free with a student ID
凭残疾证免票入场píng cán jí zhèng miǎn piào rù chǎng
enter for free with a disability ID
凭证件免票参加píng zhèng jiàn miǎn piào cān jiā
participate for free with identification

免费miǎn fèi: Be free of charge, with no payment required.
免费入场miǎn fèi rù chǎng: Get into a venue for free without paying an entry fee.

免票表示免除入场票的要求，使人无需购买或出示门票即可进入场所。miǎn piào biǎo shì miǎn chú rù chǎng piào de yāo qiú shǐ rén wú xū gòu mǎi huò chū shì mén piào jí kě jìn rù cháng suǒ

免 (miǎn, "waive or avoid") + 票 (piào, "ticket") forms the idea that the admission ticket requirement is removed.

In signs and booking information, this term often applies only to named groups such as children, students, or older adults, not to every visitor.