What does the Hebrew word spelled aleph tav mean? It occurs over 7000 times in the OT but is never translated into English.

Can/do we know the meaning and/or any significance of this word?  I have heard possibilities which seem to add depth of understanding verses like Rev 1:8 or John 1:1 and even Genesis 1:1.  I have not heard much about it before yesterday and am fascinated and wondering if the information I saw was credible so am looking for answers. 

Clarify (1) • Share • Report • Asked October 06 2019 • Nick Pyen