Commitment vs Dedication vs Obligation

When to use each in English, with meaning, register, and examples.

Commitment

Top 2,000 (common)B2noun

Dedication

Top 1,000 (very common)C1noun

Obligation

Top 2,000 (common)B2noun
Most common: Dedication
 CommitmentDedicationObligation
Pronunciation🇬🇧 /["/kəˈmɪtmənt/"]/🇺🇸 /["/kəˈmɪtmənt/"]/🇬🇧 /["/ˌdedɪˈkeɪʃn/"]/🇺🇸 /["/ˌdedɪˈkeɪʃn/"]/🇬🇧 /["/ˌɒblɪˈɡeɪʃn/"]/🇺🇸 /["/ˌɑːblɪˈɡeɪʃn/"]/
MeaningA promise to do something or stay loyal.Being committed to a task or purpose.Something you must do; a duty or responsibility.
ExampleHis commitment to the project ensured its success.hard work and dedicationShe felt a strong obligation to help her friends in need.
RegisterNeutralNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)Top 2,000 (common)
CEFR levelB2C1B2
Part of speechnounnounnoun
Collocationsabsolute, complete, full, degree, level, give, make, demonstrate, commitment on, commitment to, a lack of commitment, absolute, complete, full, degree, level, give, make, demonstrate, commitment on, commitment to, a lack of commitment, big, considerable, major, have, take on, fulfil/​fulfill, commitment on, heavy, time, commitment ofcomplete, total, great, have, demonstrate, show, dedication tocontractual, 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
Antonymsdisloyalty, indifferenceindifference, apathy, disinterestfreedom, option, choice
Common mistakesUsing 'commitment' without specifying what it's to., Confusing 'commitment' with 'commit' as a verb., 'Commitment' often misused in informal contexts.Confused with 'dedicate', which is a verb., Using 'dedication' without a specific subject, making it seem vague., Mixing up 'dedication' with 'devotion', thinking they mean the same.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.
Usage notesUsed when discussing promises or obligations in personal or professional contexts. It's generally appropriate in serious discussions and may not fit casual chatting.Use 'dedication' when discussing commitment to work, goals, or projects. It's appropriate in both personal and professional contexts but may sound too formal in casual conversations.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.

Frequently asked questions: Commitment vs Dedication vs Obligation

What's the difference between Commitment, Dedication, and Obligation?

Commitment: A promise to do something or stay loyal. Dedication: Being committed to a task or purpose. Obligation: Something you must do; a duty or responsibility.

Which is more common: Commitment, Dedication, and Obligation?

Dedication is the most common in everyday English.

Which is more advanced: Commitment, Dedication, and Obligation?

Dedication is the highest level, at C1, on the CEFR scale.

Are Commitment, Dedication, and Obligation the same CEFR level?

Commitment: B2, Dedication: C1, Obligation: B2 on the CEFR scale.

What part of speech are Commitment, Dedication, and Obligation?

Commitment: noun, Dedication: noun, Obligation: noun.

Can you show an example of each?

Commitment: His commitment to the project ensured its success. Dedication: hard work and dedication Obligation: She felt a strong obligation to help her friends in need.

Can I use Commitment, Dedication, and Obligation interchangeably?

Not always. Commitment, Dedication, and Obligation 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.

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