A plain language guide to punctuation, grammar and writing well.

Instal and install

with 6 comments

The Quotidian as Installation
Image by quinn.anya via Flickr

Both ‘instal’ and ‘install’ are correct. Choose one and don’t swap between the two in the same piece of writing.


The following all take double ‘l’:

  • installed
  • installing
  • installer
  • installation

See Oxford Dictionaries

More spelling tips and tricks

Written by Wordwatch

06/04/2010 at 9:48 am

6 Responses

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  1. Ah, thanks. I was wondering about that.


    06/04/2010 at 7:02 pm

    • Hey, what happened to my *mole* mark…. It slipped.

      Michael Farrell

      06/04/2010 at 7:59 pm

      • Oh yes, I didn’t see that. Not sure what’s going on there — sorry about that.


        07/04/2010 at 6:23 am

  2. Never seen “instal” in AmE. That’s what you get when you “AskOxford.” :)*

    Michael Farrell

    06/04/2010 at 6:54 pm

  3. Sorry, can’t agree with “instal” at all. Or at al.

    Like Michael, I’ve never seen it and I’m really not buying it.

    And as Ask Oxford goes on to say:-

    “Spelling help

    Spell install and the related word installation with a double l.”

    they are clearly not happy with “instal” either.


    06/08/2010 at 5:27 pm

    • Yes, probably best just to remember it that way and not bother with the single ‘l’ spelling. Thanks, Ron.


      06/08/2010 at 5:41 pm

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