What Does 521 Mean?

521 means “I Do.”

When read out loud in Chinese, the number 521 sounds like the Chinese phrase which translates to “I do” (as in “I am willing” or “I consent”).

521 is now widely used online and in text messaging (even among non-Chinese speakers) as a declaration of love or deep affection for another person.

There are many other Chinese numerical expressions of love and affection including:

• 530 (I miss you).
• 51921 (I still love you).
• 5201314 (I love you forever).