Wordwatch Towers

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

Instal and install

with 3 comments

Both ‘instal’ and ‘install’ are correct in the UK. ‘Install’ is usually used in the US. 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

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Written by Wordwatch

06/04/2010 at 9:48 am

3 Responses

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

    Michael Farrell

    06/04/2010 at 6:54 pm

  2. 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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