Accomplish vs Achieve vs Complete vs Execute vs Fulfill

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

Accomplish

Top 1,000 (very common)B2verb

Achieve

Top 1,000 (very common)A2verb

Complete

Top 1,000 (very common)A1adjective

Execute

Top 2,000 (common)C1verb

Fulfill

Top 2,000 (common)B1
 AccomplishAchieveCompleteExecuteFulfill
Pronunciation🇬🇧 /["/əˈkʌmplɪʃ/","/əˈkʌmplɪʃɪz/","/əˈkʌmplɪʃt/","/əˈkʌmplɪʃɪŋ/"]/🇺🇸 /["/əˈkɑːmplɪʃ/","/əˈkɑːmplɪʃɪz/","/əˈkɑːmplɪʃt/","/əˈkɑːmplɪʃɪŋ/"]/🇬🇧 /["/əˈtʃiːv/","/əˈtʃiːvz/","/əˈtʃiːvd/","/əˈtʃiːvɪŋ/"]/🇺🇸 /["/əˈtʃiːv/","/əˈtʃiːvz/","/əˈtʃiːvd/","/əˈtʃiːvɪŋ/"]/🇬🇧 /["/kəmˈpliːt/"]/🇺🇸 /["/kəmˈpliːt/"]/🇬🇧 /["/ˈeksɪkjuːt/","/ˈeksɪkjuːts/","/ˈeksɪkjuːtɪd/","/ˈeksɪkjuːtɪŋ/"]/🇺🇸 /["/ˈeksɪkjuːt/","/ˈeksɪkjuːts/","/ˈeksɪkjuːtɪd/","/ˈeksɪkjuːtɪŋ/"]/🇬🇧 //fʊlˈfɪl//🇺🇸 //fʊlˈfɪl//
MeaningTo successfully complete something.To successfully reach a goal or complete something.To finish something completely.To carry out or perform a task or order.To do what is required or promised.
ExampleThe first part of the plan has been safely accomplished.She worked hard to achieve her goals.The puzzle is now complete after I found the last piece.The software will execute the commands as soon as they are entered.She worked hard to fulfill her dreams.
RegisterNeutralNeutralNeutralNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)Top 1,000 (very common)Top 2,000 (common)Top 2,000 (common)
CEFR levelB2A2A1C1B1
Part of speechverbverbadjectiveverb
Collocationssuccessfully, easilyfail to, be able to, try to, fail to, be able to, try tobe, seem, survive, remarkably, very, far from, be, seem, almost, nearly, substantiallysummarily, illegally, publicly, as, for, beautifully, boldly, brilliantly, duly executed, beautifully, boldly, brilliantly, duly executedfulfill a dream, fulfill a promise, fulfill a requirement, fulfill one's duties
Antonymsfail, neglect, abandonfail, miss, loseincomplete, unfinished, partialcancel, abort, neglectneglect, disappoint, fail
Common mistakesConfusing with 'accomplished' which is an adjective., Using 'accomplish' without an object (e.g., saying 'I accomplish.' instead of 'I accomplish my goals.').Confused with 'complete' or 'accomplish', Using 'achieve' with non-count nouns incorrectly, Mistakenly using 'achieve' in informal settingsConfused with 'finished' — both mean to end, but 'complete' emphasizes fullness., Using 'complete' when a task is partially done., 'Complete' is sometimes incorrectly used as a noun.'Execute' is often confused with 'prosecute'; remember they have different meanings., Learners may forget that 'execute' typically requires an object, e.g., 'execute a plan'., 'Execute' is sometimes incorrectly used in informal situations where simpler verbs would be more suitable.Confused with 'fill' — remember they mean different things., Using it without an object is incorrect; you always need to say what you fulfill., Often misspelled as 'fulfil' without the second 'l' in American English.
Usage notesUse 'accomplish' when referring to achieving goals or tasks, typically in a positive context. It may not be appropriate for casual or less formal situations where simpler words like 'do' might work better.Use 'achieve' when talking about completing a goal or success in a task. It's appropriate in both personal and professional contexts, but avoid it in very casual conversations.Use 'complete' in academic or professional contexts when discussing tasks, projects, or forms. Avoid using it in overly casual conversations.Use 'execute' in formal contexts, such as legal or technical situations. It may sound too rigid in everyday conversation; prefer simpler terms like 'do' or 'carry out' in casual settings.Used in formal and everyday contexts. It's appropriate when discussing commitments, expectations, or requirements.

See it in real clips

Accomplish
Achieve
Complete
Execute

Frequently asked questions: Accomplish vs Achieve vs Complete vs Execute vs Fulfill

What's the difference between Accomplish, Achieve, Complete, Execute, and Fulfill?

Accomplish: To successfully complete something. Achieve: To successfully reach a goal or complete something. Complete: To finish something completely. Execute: To carry out or perform a task or order. Fulfill: To do what is required or promised.

Which is more advanced: Accomplish, Achieve, Complete, Execute, and Fulfill?

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

Are Accomplish, Achieve, Complete, Execute, and Fulfill the same CEFR level?

Accomplish: B2, Achieve: A2, Complete: A1, Execute: C1, Fulfill: B1 on the CEFR scale.

Can you show an example of each?

Accomplish: The first part of the plan has been safely accomplished. Achieve: She worked hard to achieve her goals. Complete: The puzzle is now complete after I found the last piece. Execute: The software will execute the commands as soon as they are entered. Fulfill: She worked hard to fulfill her dreams.

Can I use Accomplish, Achieve, Complete, Execute, and Fulfill interchangeably?

Not always. Accomplish, Achieve, Complete, Execute, and Fulfill 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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