Strong vs Thick

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

Strong

Top 1,000 (very common)A1adjective

Thick

Top 2,000 (common)A2adjective
Most common: Strong
 StrongThick
Pronunciation🇬🇧 /["/strɒŋ/","/ˈstrɒŋɡə(r)/","/ˈstrɒŋɡɪst/"]/🇺🇸 /["/strɔːŋ/","/ˈstrɔːŋɡər/","/ˈstrɔːŋɡɪst/"]/🇬🇧 /["/θɪk/"]/🇺🇸 /["/θɪk/"]/
Meaningpowerful or toughWide and heavy; not thin.
ExampleShe has a strong desire to help others.The book had thick pages that felt luxurious.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA1A2
Part of speechadjectiveadjective
Collocationsbe, feel, look, extremely, fairly, very, be still going strong, be, feel, look, extremely, fairly, very, be still going strong, be, feel, look, extremely, fairly, very, be still going strong, be, feel, look, extremely, fairly, very, be still going strong, be, feel, look, extremely, fairly, very, be still going strong, be, feel, look, extremely, fairly, very, be still going strong, be, feel, look, extremely, fairly, very, be still going strong, be, feel, look, extremely, fairly, very, be still going strong, be, feel, look, extremely, fairly, very, be still going strongbe, feel, look, extremely, fairly, very, be, feel, look, extremely, fairly, very, be, look, seem, extremely, fairly, very, be, feel, look, extremely, fairly, very, with
Antonymsweak, fragile, feeblethin, slim, narrow
Common mistakesConfused with 'sturdy' for describing objects instead of strength., Using 'strong' with uncountable nouns when a different adjective is needed., Overusing 'strong' in negative contexts instead of using 'weak' or 'fragile'.Confused with 'thin' — using it to describe something that is not heavy., Incorrect use in context, e.g., 'thick' cannot describe abstract qualities like ideas.
Usage notesUsed to describe physical strength, emotional power, or intensity. Suitable in various contexts, but avoid in overly formal writing.Use 'thick' to describe objects like books or liquids. In a casual context, it can also refer to a person's body shape, but be careful as it might be considered rude in some situations.

Frequently asked questions: Strong vs Thick

What's the difference between Strong and Thick?

Strong: powerful or tough Thick: Wide and heavy; not thin.

Which is more common: Strong and Thick?

Strong is the most common in everyday English.

Which is more advanced: Strong and Thick?

Thick is the highest level, at A2, on the CEFR scale.

Are Strong and Thick the same CEFR level?

Strong: A1, Thick: A2 on the CEFR scale.

What part of speech are Strong and Thick?

Strong: adjective, Thick: adjective.

Can you show an example of each?

Strong: She has a strong desire to help others. Thick: The book had thick pages that felt luxurious.

Can I use Strong and Thick interchangeably?

Not always. Strong and Thick 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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