Block vs Chunk

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

Block

Top 1,000 (very common)B1noun

Chunk

Top 2,000 (common)C1noun
Most common: Block
 BlockChunk
Pronunciation🇬🇧 /["/blɒk/"]/🇺🇸 /["/blɑːk/"]/🇬🇧 /["/tʃʌŋk/"]/🇺🇸 /["/tʃʌŋk/"]/
MeaningTo stop something from happening or to make it impossible to pass.A piece or part of something, often large.
ExampleHe threw a block of wood into the fire.a chunk of cheese/masonry
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB1C1
Part of speechnounnoun
Collocationsbig, huge, large, on the chopping block, high-rise, tower, tenement, in a/​the block, block of, city, around the block, round the block, block from, city, around the block, round the block, block from, mental, writer’s, experience, have, suffer from, big, huge, large, on the chopping blockbig, great, huge, cut something (up) into chunks, in a/​the chunk, chunk of, big, great, huge, cut something (up) into chunks, in a/​the chunk, chunk of
Antonymsallow, permit, facilitatewhole, entire, full
Common mistakesConfused with 'block' as a noun vs. verb., Using 'block' with the wrong prepositions., Saying 'blocked by' instead of 'blocked from'.Confused with 'hunk' – remember that a chunk can be any size, not just large., Using 'chunk' as a verb incorrectly – it's primarily a noun., Mispronouncing it as 'chank' instead of 'chunk'.
Usage notesUse 'block' when referring to stopping something physically or metaphorically. It's appropriate in both everyday and formal contexts. Avoid using it in overly casual conversations.Use 'chunk' in both formal and informal contexts. It's suitable for discussing food, data, or information. Avoid using it in very formal writing.

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Block

Frequently asked questions: Block vs Chunk

What's the difference between Block and Chunk?

Block: To stop something from happening or to make it impossible to pass. Chunk: A piece or part of something, often large.

Which is more common: Block and Chunk?

Block is the most common in everyday English.

Which is more advanced: Block and Chunk?

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

Are Block and Chunk the same CEFR level?

Block: B1, Chunk: C1 on the CEFR scale.

What part of speech are Block and Chunk?

Block: noun, Chunk: noun.

Can you show an example of each?

Block: He threw a block of wood into the fire. Chunk: a chunk of cheese/masonry

Can I use Block and Chunk interchangeably?

Not always. Block and Chunk 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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