Lean vs Skinny vs You're flat as a washboard

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

Lean

Top 1,000 (very common)B2verb

Skinny

Top 3,000 (common)

You're flat as a washboard

InformalBeyond 10,000 (less common)
Most common: Lean
 LeanSkinnyYou're flat as a washboard
Pronunciation🇬🇧 /["/liːn/","/liːnz/","/liːnd/","/lent/","/ˈliːnɪŋ/"]/🇺🇸 /["/liːn/","/liːnz/","/liːnd/","/lent/","/ˈliːnɪŋ/"]/🇬🇧 //ˈskɪni//🇺🇸 //ˈskɪni//🇬🇧 //jʊəːr flæt əz ə ˈwɒʃbɔːd//🇺🇸 //jʊr flæt əz ə ˈwɔːʃbɔrd//
MeaningTo bend or tilt to one side.Very thin or slim.You have no curves or are very thin.
ExampleShe decided to lean against the wall while waiting for her friends.He was so skinny that his clothes looked baggy on him.She joked that she's as flat as a washboard.
RegisterNeutralNeutralInformal
How commonTop 1,000 (very common)Top 3,000 (common)Beyond 10,000 (less common)
CEFR levelB2--
Part of speechverb
Collocationsheavily, across, against, from, heavily, across, against, from, heavily, across, against, fromskinny jeans, skinny latte, skinny model, skinny frame, skinny girluse humor, make a joke, body shape
Antonymsstraighten, stand uprightfat, overweight, chubbycurvy, full-figured, voluptuous
Common mistakes'Leaning' confused with 'leaning on' a person instead of an object., Using 'lean' as a noun instead of a verb., Mixing up 'lean' with 'lend' in context.Confused with 'slim' which can have a positive connotation., Using it for objects rather than people, which may sound strange.Used to describe something other than body shape., Confused with 'flat as a pancake'., Assumed to only apply to women.
Usage notesUse 'lean' when describing physical positioning or support. Avoid using it in formal writing where more precise language is needed.Use 'skinny' to describe someone very thin. It can be informal and sometimes perceived as negative, so consider the context.Often used humorously or teasingly, mostly among friends. May be considered rude if used in the wrong context.

See it in real clips

Skinny
You're flat as a washboard

Frequently asked questions: Lean vs Skinny vs You're flat as a washboard

What's the difference between Lean, Skinny, and You're flat as a washboard?

Lean: To bend or tilt to one side. Skinny: Very thin or slim. You're flat as a washboard: You have no curves or are very thin.

Which is more common: Lean, Skinny, and You're flat as a washboard?

Lean is the most common in everyday English.

Can you show an example of each?

Lean: She decided to lean against the wall while waiting for her friends. Skinny: He was so skinny that his clothes looked baggy on him. You're flat as a washboard: She joked that she's as flat as a washboard.

Can I use Lean, Skinny, and You're flat as a washboard interchangeably?

Not always. Lean, Skinny, and You're flat as a washboard 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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