We've got 2 definitions »

What does 401 stand for? 

What does 401 mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: 401.

Filter by: Sort by:PopularityAlphabeticallyCategory
TermDefinitionRating
401

Rhode Island

Regional » US Phone Area Codes

Rate it:
401

Unauthorized

Internet » HTTP Error Codes

Rate it:

What does 401 mean?

401
Year 401 (CDI) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Vincentius and Fravitus (or, less frequently, year 1154 Ab urbe condita). The denomination 401 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

see more »

Discuss these 401 abbreviations with the community:

1 Comment
  • Gilbert Alvarado
    Gilbert Alvarado
    £401
    LikeReply 19 years ago

Know what is 401? Got another good explanation for 401? Don't keep it to yourself!

Still can't find the acronym definition you were looking for? Use our Power Search technology to look for more unique definitions from across the web!

Citation

Use the citation options below to add these abbreviations to your bibliography.

Style:MLAChicagoAPA

"401." Abbreviations.com. STANDS4 LLC, 2024. Web. 23 Apr. 2024. <https://www.abbreviations.com/401>.

Image or illustration of

401

Rhode Island
Credit »

Browse Abbreviations.com

Free, no signup required:

Add to Chrome

Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!

Free, no signup required:

Add to Firefox

Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!

Quiz

The ultimate acronym test

»
FWIW
A Forgot Where I Was
B For What It's Worth
C For Whoever Is Wondering
D Flying Without Imagined Wings

Embed

Share an image of 401

»

Hearing impaired tip:

Sign language

How do you say 401 in ASL sign language fingerspelling?