I found small movable groin lump sore to touch what could it be?

Lymph node: Would be one common possibility. These swell and become tender whenever there is inflammation or infection in the region. Occasionally a hernia might occur in this area, but it is less common for females. If it doesn't resolve on its own in a couple of weeks, have your doctor check it.

Different thibgs: Would need a physical exam to tell. Possibilities include lymph node, skin infection, hernia, etc.