Quick meaning
A message shown when the webpage you are looking for cannot be found — it may have moved or been deleted.
Think of it like this
Like arriving at an address and finding the building no longer exists.
Where you may see this
You may see this when reading websites, browsing settings, or following basic online instructions.
Why it matters
Knowing this word makes everyday web tasks feel less intimidating and helps you follow step-by-step guides more confidently.
Say it simply
404 Error means: A message shown when the webpage you are looking for cannot be found — it may have moved or been deleted.