[-]

Jyutping on3 zaan3
Pinyin àn zàn

Definitions (Wiktionary)
  1. verb, Taiwan
    to press the "like" button; to like a post on social media
    (syn.) 点赞, 點讚

按讚 [-赞]

Jyutping
Pinyin àn zàn

Definitions (CC-CEDICT)
  1. to give sb a thumbs-up (on social media)