thin as a rail

USAGE SUMMARY

The phrase "thin as a rail" is correct and usable in written English.
It can be used to describe someone or something that is very thin or slender. Example: "After months of training, she was now thin as a rail, ready for the marathon."

✓ Grammatically correct

News & Media

Wiki

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

7 human-written examples

She is thin as a rail and she's hot.

The Guardian - Film

Rails have a laterally compressed body, which gives rise to the expression "thin as a rail," enabling them to sneak between reeds and blades of grass without telltale movements of the vegetation.

Encyclopedia Britannica

Oddly, though, he was thin as a rail.

Huffington Post

This Santa isn't fat; he's thin as a rail and he's holding up a sign begging people to "Help... Send Santa Claus Down 10,000 Chimneys for Chicago's Poor People".

Huffington Post

I know right now I look thin as a rail, I'm hunched over, embarrassed, insecure and trying not to feel ashamed that I can't behave like everyone else and not make a scene wherever I go.

Huffington Post

As one author described him, Sherman was "thin as a rail, over six feet high, with close cropped beard and possessed of bad teeth and a divine laugh, when he laughs".

Wikipedia

Human-verified similar examples from authoritative sources

Similar Expressions

50 human-written examples

Jordan is slim as a rail.

Huffington Post

Vick was as thin as a post.

The New York Times - Sports

One as thin as a pencil.

TechCrunch

He is thin as an elder tree.

The Guardian - Arts

Rail-thin, as befits a 57-year-old who runs a 3 hour 37 minute marathon, Ms. Clark admitted she might have shared some glasses along the way.

The New York Times

Expert writing Tips

Best practice

Use "thin as a rail" to vividly describe someone or something exceptionally slender. This phrase works well in informal and creative contexts to add emphasis.

Common error

Avoid using "thin as a rail" in formal or professional documents. Opt for more neutral and precise terms like "slender", "lean", or "underweight" to maintain a professional tone.

Linguistic Context

The phrase "thin as a rail" functions primarily as an adjectival simile, modifying a noun to describe its extreme slenderness. Ludwig's examples show it being used to describe people, objects, and even abstract concepts.

Expression frequency: Uncommon

Frequent in

News & Media

40%

Wiki

30%

Formal & Business

10%

Less common in

Encyclopedias

10%

Science

5%

Unknown

5%

Ludwig's WRAP-UP

In summary, "thin as a rail" is a simile used to describe something extremely slender. While grammatically correct and common in informal contexts, it should be used cautiously in formal writing. Ludwig AI confirms that it is a usable English phrase. Related phrases include "skinny as a rake" and "slim as a whip", offering similar but nuanced ways to convey extreme thinness. When considering its usage, remember that source quality impacts perceived credibility. Be aware of the context, and consider whether a more neutral term would be more appropriate. The most frequent sources where the phrase is used are News & Media.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

skinny as a rake

Focuses more on boniness and lack of flesh; slightly more informal.

slim as a whip

Emphasizes leanness and agility; suggests a toned physique rather than mere thinness.

gaunt as a ghost

Implies a haggard or unhealthy thinness, often due to illness or hardship.

as slender as a reed

Highlights flexibility and gracefulness in addition to thinness; evokes a natural image.

scrawny as a chicken

Suggests a weak or underdeveloped physique; often carries a negative connotation.

emaciated

A more clinical term indicating severe thinness, often due to malnutrition or disease.

underweight

A general term referring to a body weight below the healthy range; lacks the vivid imagery of "thin as a rail".

lean

Implies a healthy thinness with minimal body fat; less extreme than "thin as a rail".

bony

Highlights the prominence of bones due to lack of flesh; can be used regardless of overall body size.

svelte

Suggests an elegant and graceful thinness, often associated with fashion and beauty.

FAQs

What does "thin as a rail" mean?

The phrase "thin as a rail" means extremely thin. It's a simile that compares someone or something's slenderness to the thinness of a metal rail.

What can I say instead of "thin as a rail"?

You can use alternatives like "skinny as a rake", "slim as a whip", or "as slender as a reed" depending on the context.

Is it appropriate to describe someone as "thin as a rail"?

While "thin as a rail" is a common expression, consider your audience and the potential for causing offense. In some contexts, it may be more sensitive to use a more neutral term like "slender" or avoid commenting on someone's weight altogether.

Is "thin as a rail" a simile or a metaphor?

"Thin as a rail" is a simile because it uses the word "as" to make a direct comparison between someone or something's thinness and a rail. A metaphor would imply the comparison without using "as" or "like".