Onus (noun)
بوجھ، وزن، ذمہ داری، ڈیوٹی
something that is one’s duty or responsibility.
Example: “the onus is on you to show that you have suffered loss”
Appendage (noun)
ضمیمہ، ملحقہ چیز، اضافی چیز
a thing that is added or attached to something larger or more important.
Example: “they treat Scotland as a mere appendage of England”