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obligation

/əˈblɪɡəʃən/ noun · British & US
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What does obligation mean?

An obligation is something a person is bound to do, whether because of a promise, legal requirement, financial commitment, or moral duty. The word suggests more than a casual intention: it implies responsibility and, often, consequences for failing to act. People speak of a moral obligation to protect vulnerable people, a legal obligation to disclose information, or a financial obligation to repay a debt. In some contexts, the term also carries a sense of gratitude or personal indebtedness, as in feeling an obligation to a former friend. Obligation is related in meaning to duty, responsibility, and commitment, but it often places particular emphasis on the binding nature of the duty. Its Latin roots connect it with binding or tying, which explains why it is associated with promises and duties that hold someone to a course of action.

noun

An obligation is a duty, promise, or commitment that a person is required or expected to fulfil. It may arise from moral responsibility, law, contract, financial arrangements, or personal ties.

Senses
  1. A moral, social, or ethical duty.
  2. A legal or contractual commitment that requires action.
  3. A financial or material commitment, such as a payment or repayment.
Example

"The agreement places an obligation on the landlord to repair the property."

More examples

"She felt a strong obligation to help her neighbours during the storm."

"The company has an obligation to repay the loan by the end of the year."

Plural obligations

The plural is used for duties, commitments, or liabilities, especially in legal, financial, and ethical contexts.

Example

"The organization must meet all its financial obligations before the end of the fiscal year."

Did you know?

Obligation literally comes from the Latin idea of being bound: its root means to tie or bind, just as a formal obligation binds a person to a promise or duty.

Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.

Etymology of obligation

Obligation comes from Latin obligationem, a noun derived from obligare, meaning “to bind” or “to make an obligation.” The Latin root obligare combines ob-, indicating direction or application, with ligare, “to bind.” The word entered English in the late 16th century and initially referred to a legal or moral tie, commitment, or duty. Its relatives obligatory, obligate, oblige, and obliging belong to the same Latin root, although they developed distinct modern meanings.

How obligation is actually used

The word is formal and often carries a sense of duty, seriousness, or binding force. It is especially common in legal, financial, and ethical contexts; in everyday speech, duty or responsibility may sound more conversational.

Easily confused with obligation

duty

A duty is a required or expected responsibility, while an obligation often emphasizes a binding commitment, especially one arising from law, contract, or a promise.

responsibility

Responsibility refers broadly to what someone is accountable for, whereas an obligation is a specific duty or commitment that must be fulfilled.

What's another word for obligation?

dutyresponsibilitycommitmentrequirementpromiseliability

Words and phrases paired with obligation

moral obligationlegal obligationsense of obligationdischarge an obligation