The reason why vs the cause why

Both "the reason why" and "the cause why" are commonly used phrases in English, but "the reason why" is more widely accepted and preferred. While both phrases convey a similar meaning, "the reason why" is more idiomatic and natural in everyday language.

Last updated: February 23, 2025 • 7655 views

The reason why

This phrase is correct and commonly used in English.

This phrase is used to introduce an explanation or justification for something. It is a common and idiomatic way to express the cause or explanation behind an action or event.

Examples:

Can you tell me the reason why you were late?
I don't understand the reason why he left so suddenly.
The reason why she did that is still unclear.
Do you know the reason why the project was delayed?
He explained the reason why he couldn't attend the meeting.

Show examples from the web [+]
Last updated: November 23, 2024

Aug 6, 2021 ... "The reason why" is no different than "the reason that" ("that" is also a conjunction here), and no one considers the latter to be redundant.
Mar 17, 2024 ... “The reason why you want to be better is the reason why you aren't.” — Alan Watts.
Mar 2, 2021 ... The reason why Find Tool or Ctrl-F do not work ... Does anybody know why either Find Tool or Ctrl-F command would not work on my Alteryx Designed ...

Alternatives:

the reason for
the cause of
the explanation for

the cause why

This phrase is not commonly used in English and sounds awkward.

Show examples from the web [+]
Last updated: November 23, 2024

Jun 1, 2022 ... Is anyone know the cause why the driver of my IO card went missing after the shutdown then power ON is done? While this will not remove/erase ...
The Cause: Why We Think, Feel, & Act The Way We Do! As I work with people as a psychologist, speaker, seminar leader, etc., the thing I hear over and over ...
Oct 10, 2010 ... Finding the cause why a laptop wakes itself from sleep · Disconnecting the mouse\keyboard · Disconnecting it from the LAN · Keeping it with the lid ...
May 4, 2024 ... And can it be the cause why my wheel is bouncing? The red thing is not completely aligned so can it cause the tire to wobble.
Sep 10, 2022 ... EZGO - No Power - Not the Valves - Air Assembly the Cause - Why?? Thread starter Danny.prouty; Start date Sep 10, 2022. Tags: air assembly ...
What's the cause why ADC raw reading value became higher after NVIC_SystemReset? Go to solution. MarlonM. Associate II. Options. Mark as New; Bookmark ...
Oct 28, 2023 ... I have tried again to debug this but am not finding the cause. Why does “right-click-paste” via mouse work but not “Ctrl-V” from keyboard?
Sep 10, 2023 ... ... the cause. Why do we need a pick-me-up? Why are staff tires? Sometimes, there may be a valid reason for this, and every now and then, a ...
Oct 23, 2020 ... "that's the cause why"?” Wow, the debate on cause and reason at the grammatical level. “Reason” is about justifying something in terms of ...
thats the cause why SCRI objects are always in this state. In general 2nd one - Automic script gets processed first always - so if you mix up JCL (batch ...

Alternatives:

the reason why
the cause of
the explanation for

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The reason why vs the cause why

The reason why

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