Yes, a joint tenants would almost certainly be considered to be "joint tenants with right of survivorship" (JTROS), since the other principal form of co- or joint ownership is called "tenants in common." Also, JTROS is the way that sposues typically own property together. And yes: JTROS bypasses probate and the property does not become part of the deceased's estate: the surviving joint tenant becomes the sole owner on the death of the other joint tenant.