Obligation vs That's a pretty big commitment
When to use each in English, with meaning, register, and examples.
Obligation
Top 2,000 (common)B2noun
That's a pretty big commitment
Top 5,000 (fairly common)
Most common: Obligation
| Obligation | That's a pretty big commitment | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˌɒblɪˈɡeɪʃn/"]/🇺🇸 /["/ˌɑːblɪˈɡeɪʃn/"]/ | 🇬🇧 //ðæts ə ˈprɪti bɪg kəˈmɪtmənt//🇺🇸 //ðæts ə ˈprɪti bɪg kəˈmɪtmənt// |
| Meaning | Something you must do; a duty or responsibility. | It's a significant promise or responsibility. |
| Example | She felt a strong obligation to help her friends in need. | Buying a house really is a pretty big commitment. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 5,000 (fairly common) |
| CEFR level | B2 | - |
| Part of speech | noun | |
| Collocations | contractual, legal, statutory, carry out, discharge, fulfil/fulfill, arise from something, under an obligation, without obligation, obligation of, contractual, legal, statutory, carry out, discharge, fulfil/fulfill, arise from something, under an obligation, without obligation, obligation of | make a commitment, big commitment, long-term commitment, serious commitment, financial commitment |
| Antonyms | freedom, option, choice | - |
| Common mistakes | Confused with 'obligated' — remember 'obligation' is the noun., Using 'obligation' with incorrect prepositions — typically used with 'to' (e.g., obligation to pay)., Overusing in casual speech — more common in formal contexts. | Using 'commitment' incorrectly as a verb instead of a noun., Confusing 'commitment' with 'agreement' - a commitment is more personal., Overusing 'pretty' in formal speech. |
| Usage notes | Use 'obligation' in both formal and informal contexts when discussing responsibilities or duties. It's appropriate in legal, academic, or personal situations but less common in casual conversations. | Use in contexts discussing promises or responsibilities, often when emphasizing importance. It’s suitable for casual conversations, but can be used in formal contexts if necessary. |
See it in real clips
Frequently asked questions: Obligation vs That's a pretty big commitment
What's the difference between Obligation and That's a pretty big commitment?
Obligation: Something you must do; a duty or responsibility. That's a pretty big commitment: It's a significant promise or responsibility.
Which is more common: Obligation and That's a pretty big commitment?
Obligation is the most common in everyday English.
Can you show an example of each?
Obligation: She felt a strong obligation to help her friends in need. That's a pretty big commitment: Buying a house really is a pretty big commitment.
Can I use Obligation and That's a pretty big commitment interchangeably?
Not always. Obligation and That's a pretty big commitment are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.