The term is used by so many groups and thinkers in so many ways, an acceptable definition would be helpful.

If so, how similar is it?

The scholar Shahab Ahmed presents a new conceptualization of Islam challenging cpommon understandings grounded in the categories of "religion" and "culture" or those privilegeing law and scripture. He argues that these modes of thinking obstruct us from understanding Islam, distorting it, diminishing it, and rendering it incoherent.

The prophet exhibited love for Mecca and he said love of one's homeland was from imaan.

There's a famous hadith speaking of hubb al-watan that seems to suggest it is