Zayn is also a masculine Arabic name which means "Beauty and Grace." Zayn refers to inner beauty not external beauty. It can be the first name for a boy or a surname. It is a very common name among people of Middle Eastern and North African descent.
Ali ibn Husayn the fourth Shi'a Imam (659-713 AD) was nick named "Zayn al-Abidin" (Beauty of the Worshippers).
You: "I'm so sorry."
Zayn: "Well, that's quite alright, babe." "I love your eyes by the way."
Its meaning takes on several forms but most often linked to beauty, grace or some fu*king G who jacks loads of gash because he is superiorly buff and makes all the girls collapse because of his huge trouser snake