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roughage

B2
UK/ˈrʌfɪdʒ/US/ˈrʌfɪdʒ/

formal, medical, nutritional; occasionally informal in health contexts.

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Definition

Meaning

dietary fiber; the indigestible parts of plant foods that aid digestion and bowel function.

1. Coarse, fibrous material in animal feed (e.g., hay). 2. Figuratively, something that provides necessary bulk or substance to a system or process.

Linguistics

Semantic Notes

Primarily a mass noun. Often used interchangeably with 'dietary fiber,' though 'roughage' can imply a coarser, more old-fashioned notion of fiber.

Dialectal Variation

British vs American Usage

Differences

More common in British English. In American English, 'fiber' is the dominant term in nutritional contexts.

Connotations

UK: Slightly old-fashioned but still understood, associated with traditional health advice. US: Can sound dated or quaint; 'fiber' is preferred.

Frequency

Low frequency in contemporary American English outside specific technical (agricultural/animal feed) contexts.

Vocabulary

Collocations

strong
dietary roughagehigh roughagesource of roughagelack of roughage
medium
eat more roughageroughage contentroughage in your diet
weak
healthy roughagenatural roughageplenty of roughage

Grammar

Valency Patterns

consume roughageinclude roughage inroughage helps (with)roughage consists of

Vocabulary

Synonyms

Strong

fiberindigestible matter

Neutral

dietary fiberbulk

Weak

branrough stuff

Vocabulary

Antonyms

refined foodprocessed foodlow-residue diet

Phrases

Idioms & Phrases

  • “[No common idioms specific to 'roughage']”

Usage

Context Usage

Business

Rare. Possibly in agribusiness for animal feed specifications.

Academic

Used in nutritional science, dietetics, agriculture.

Everyday

In discussions about diet, health, digestion.

Technical

Specific to animal nutrition, feed composition, human gastroenterology.

Examples

By Part of Speech

noun

British English

  • My GP advised me to increase my intake of roughage.
  • The rabbit's diet should contain sufficient roughage like hay.

American English

  • Oatmeal is a good source of roughage. (less common)
  • The term 'roughage' is often replaced by 'fiber' in nutritional labels.

Examples

By CEFR Level

A2
  • Eat vegetables for roughage.
B1
  • Foods like beans and wholemeal bread provide important roughage.
B2
  • A diet lacking in sufficient roughage can lead to digestive problems.
C1
  • The study compared the effects of soluble fiber and insoluble roughage on colonic health.

Learning

Memory Aids

Mnemonic

Think: ROUGH + AGE. Eating ROUGH, fibrous foods can help you age healthily.

Conceptual Metaphor

FOOD IS FUEL / THE BODY IS A MACHINE (roughage is the necessary 'lubricant' or 'cleaning agent' for the system).

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Do not translate as 'грубость' (rudeness). The closest equivalent is 'клетчатка' (dietary fiber).

Common Mistakes

  • Using it as a countable noun (e.g., 'a roughage').
  • Confusing it with 'rubbish' or waste.

Practice

Quiz

Fill in the gap
Doctors often recommend eating more fruits and vegetables to increase your intake.
Multiple Choice

In which context is the word 'roughage' MOST commonly used today?

FAQ

Frequently Asked Questions

Essentially yes, though 'roughage' often implies the older, coarser concept of indigestible plant matter, while 'dietary fiber' is the modern scientific term encompassing soluble and insoluble types.

No, it's quite uncommon in everyday American English. 'Fiber' is the standard term. You might encounter 'roughage' in historical texts or specific agricultural contexts.

Yes, it applies to both. For animals, especially livestock, it refers to coarse fodder like hay.

It is formal or technical. In casual conversation, especially in the US, people simply say 'fiber.'