IPA: /ˌɒblɪˈɡeɪʃən/
KK: /ˌɑːblɪˈɡeɪʃən/
A requirement to do something, often because of laws, rules, or personal commitments.
She felt a strong obligation to help her friends in need.
Obligation → It is formed from "ob-" (meaning towards) and "ligare" (meaning to bind). The word "obligation" refers to a binding commitment or duty towards something or someone.
Think of being 'bound' ('ligare') towards something ('ob-') — that's why obligation means a commitment or duty.