In Sikhphilosophy as per Sri Guru Granth Sahib Ji I do not find anything being refered as GOD.This I feel is our own assunption with respect of Gurbaani interpretation.Generally where we are stuck up with some explanation instead of understanding that we immediately make use of the word GOD.
If we carefully and sicerely go thru Gurbaani we would find that the whole Gurbaani is based on the concept of two words GuRU and GuR.Now because our preachers and scholars have taught us that GuR is the same as GuRU so we are leaving a vacant space to be filled by the word GOD to justify the interpretation of Gurbaan. Actually we should have tried to understand the reference meanings of the words GuRU and GuR.
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/sikh-sikhi-sikhism/8536-who-is-god-in-sikhism.html
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/showthread.php?t=8536

Therefore if we can understand the reference meanings of the stated two words any one can see then there would be no needof making use of the word GOD in interpretation of Gurbaani. Unfortunately we are not doing this.

This is observation for anyone to verify from Sri Guru Granth Sahib Ji.

Prakash.S.Bagga