The Meaning of SY – SY means “Sincerely Yours“. It is an internet acronym. What does SY mean? SY is an abbreviation that stands for “Sincerely Yours”. Check the content shared below on this page to find out SY definition and all the information related to acronym SY in FAQ format.

What does SY mean?

SY is an acronym, abbreviation or slang word which means “Sincerely Yours”. It is used during chats and online conversations on forums, social networking sites and chat rooms.

The Meaning of SY

SY means “Sincerely Yours”.

What is SY?

SY is “Sincerely Yours”.

SY Definition / SY Means

The definition of SY is “Sincerely Yours”.