# When did STD become STI?

**URL:** <https://boards.straightdope.com/t/when-did-std-become-sti/438453>\
**Category:** Factual Questions\
**Created:** [February 20, 2008, 11:32pm UTC](https://boards.straightdope.com/t/when-did-std-become-sti/438453 "2008-02-20T23:32:54Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![Mister\_Rik](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mister_rik/32/491_2.png) [@Mister\_Rik](https://boards.straightdope.com/u/Mister_Rik)\
**Post date:** [February 22, 2008, 2:51am UTC](https://boards.straightdope.com/t/when-did-std-become-sti/438453/21 "2008-02-22T02:51:16Z")

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[QUOTE=Usram]  
You mean STD doesn’t stand for Subscriber Trunk Dialling? All this time I thought there was this killer disease you could get from telephones.  
[/QUOTE]

According to [Schaffer the Darklord](http://youtube.com/watch?v=tB4sTc5ZYEc), STD is the abbreviation for “standard”.

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**Author:** ![berff](https://avatars.discourse-cdn.com/v4/letter/b/43a26b/32.png) [@berff](https://boards.straightdope.com/u/berff)\
**Post date:** [February 22, 2008, 6:57am UTC](https://boards.straightdope.com/t/when-did-std-become-sti/438453/22 "2008-02-22T06:57:17Z")

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Also, when did they change cellular phone to cell phone?

And why did they change laptop computer to notebook computer, and then back to laptop computer again?

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