Guideline vs There's only one rule

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

Guideline

Top 2,000 (common)B2noun

There's only one rule

Top 2,000 (common)
 GuidelineThere's only one rule
Pronunciation🇬🇧 /["/ˈɡaɪdlaɪn/"]/🇺🇸 /["/ˈɡaɪdlaɪn/"]/🇬🇧 //ðeəz ˈəʊnli wʌn ruːl//🇺🇸 //ðɛrz ˈoʊnli wʌn rul//
MeaningA rule or instruction that helps you do something correctly.There is just one guideline or principle.
ExampleThe company has set a new guideline for employee conduct.In this game, there's only one rule: have fun!
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR levelB2-
Part of speechnoun
Collocationsclear, good, helpful, set, develop, propose, recommend, apply, state something, require something, under guideline, within guideline, guideline about, clear, good, helpful, set, develop, propose, recommend, apply, state something, require something, under guideline, within guideline, guideline aboutfollow a rule, break a rule, state a rule
Antonymschaos, disorder, confusion-
Common mistakesConfused with 'guidelines' as a singular word., Using 'guideline' when 'guidelines' is needed in plural context., Misplacing the word in awkward sentence structures.Confusing with phrases like 'there are many rules.', Misusing 'rule' as a verb instead of a noun., Omitting 'only' and changing the meaning.
Usage notesUsed in both formal and informal contexts, especially in work or educational settings. Not appropriate for casual conversations. Often used with 'follow', 'establish', or 'provide'.This phrase is often used in casual conversation to emphasize simplicity. It's appropriate for informal settings, but can also work in neutral contexts.

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There's only one rule

Frequently asked questions: Guideline vs There's only one rule

What's the difference between Guideline and There's only one rule?

Guideline: A rule or instruction that helps you do something correctly. There's only one rule: There is just one guideline or principle.

Can you show an example of each?

Guideline: The company has set a new guideline for employee conduct. There's only one rule: In this game, there's only one rule: have fun!

Can I use Guideline and There's only one rule interchangeably?

Not always. Guideline and There's only one rule 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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