Add vs Append

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

Add

High-frequency chunkA1verb

Append

Beyond 10,000 (less common)B1
Most common: Add
 AddAppend
Pronunciation🇬🇧 /["/æd/","/ædz/","/ˈædɪd/","/ˈædɪŋ/"]/🇺🇸 /["/æd/","/ædz/","/ˈædɪd/","/ˈædɪŋ/"]/🇬🇧 //əˈpɛnd//🇺🇸 //əˈpɛnd//
Meaningto put together or to include moreto add something to the end of something else
ExamplePlease add your name to the list.You can append new data to the existing database.
RegisterNeutralNeutral
How commonHigh-frequency chunkBeyond 10,000 (less common)
CEFR levelA1B1
Part of speechverb
Collocationshastily, hurriedly, quickly, hasten toappend a file, append data, append text
Antonymssubtract, remove, deductremove, delete, detach
Common mistakes'Add to' used incorrectly as if it were 'add with', Confusing 'add' with 'add up' which has different meanings, 'Adding' used without an objectConfusing with 'prepend' which means to add at the beginning., Incorrectly using with intransitive subjects, e.g. 'the data appends'. Should say 'the data is appended'.
Usage notesUse 'add' in both casual and formal contexts, but avoid it in very technical or academic writing where more specific terms might be required.Used mostly in technical or formal contexts, such as programming or writing. Not common in casual conversation.

See it in real clips

Add

Frequently asked questions: Add vs Append

What's the difference between Add and Append?

Add: to put together or to include more Append: to add something to the end of something else

Which is more common: Add and Append?

Add is the most common in everyday English.

Which is more advanced: Add and Append?

Append is the highest level, at B1, on the CEFR scale.

Are Add and Append the same CEFR level?

Add: A1, Append: B1 on the CEFR scale.

Can you show an example of each?

Add: Please add your name to the list. Append: You can append new data to the existing database.

Can I use Add and Append interchangeably?

Not always. Add and Append 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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