Rape is forced sex with a female by a male. Sex means vaginal intercourse which means penetration of vagina by the penis. Any other definition that includes other sex crimes under rape dilutes the gravity of rape.
Some countries have broadened the definition of rape to include various sex crimes. In India there is a demand to change the definition of rape to include all sex crimes. That should be avoided. Vaginal intercourse is different from anal or oral intercourse. In vaginal intercourse a female can become pregnant. That does not happen in anal or oral intercourse. Penetration of vagina by any object other than penis is an unnatural sex crime.