Rivalry (noun)
مسابقت، رقابت، دشمنی
competition for the same objective or for superiority in the same field.
Example: “there always has been intense rivalry between the clubs”
Custodian (noun)
نگران، ناظم، رکھوالا
a person who has responsibility for taking care of or protecting something.
Example: “the custodians of pension and insurance funds”