• 3-minute read
  • 7th May 2020

Spelling Tips: Focused or Focussed?

‘Focused’ and ‘focussed’ are simply variant spellings of the same term. The most common version is ‘focused’ (one ‘s’), but both are accepted spellings and you will see both in published writing. So, which one should you use in your work? In this post, we explain everything you need to know.

What Does ‘Focused’ Mean?

‘Focused/focussed’ has a couple of key meanings. The first is as the past tense of the verb ‘focus’. For instance, we could say:

We focused/focussed on correcting the spelling in the document.

The second is as an adjective meaning ‘clear’ or ‘concentrated’:

The expertly focused/focussed image made the culprit easy to spot.

She had a focused/focussed approach to training.

As shown above, you can use either spelling for either definition. However, ‘focused’ is the most common variant, so it is usually the best choice.

Why Two Spellings?

The two spellings of this term are a result of the doubling up rule and English spelling reform crashing into one another.

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The doubling up rule states that the final letter of some words should be doubled when you add a vowel suffix. Usually, this only applies to a two-syllable word when the final syllable is stressed. ‘Focus’ doesn’t fit this pattern, but the final ‘s’ was often doubled anyway (e.g. focussed, focussing).

However, the trend to simplify English spelling, especially in American English, has sometimes involved dropping this extra letter, like in ‘focused’. And while some people assume it is only an American English spelling, it has also been more popular in British English for decades.

Use of 'focused' and 'focussed' in English.
Use of ‘focused’ and ‘focussed’ in English.

Most dictionaries still recognise the double ‘s’ spelling ‘focussed’, too, so it isn’t wrong to use it. But it is much rarer in modern writing, especially in American English, which almost always favours ‘focused’.

Summary: Focused or Focussed?

‘Focused’ and ‘focussed’ are two spellings of the same word:

  • Focused (one ‘s’) is the standard spelling of this term in modern English.
  • Focussed (with a double ‘s’) is a rare variant spelling, although it is more common in British and Australian English than it is in American English.

In short, then, it is usually best to stick with ‘focused’. However, most dictionaries accept the double ‘s’ spelling, too, so you can use it if you prefer or if your style guide suggests doing so. The most important thing is to use one spelling consistently throughout your writing!

And if you want to be extra sure the spelling in your work is correct and consistent, you may want to get it proofread. Why not upload a sample document for free and find out how we can help?

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Comments (15)
Sue
4th December 2020 at 13:29
You double the consonant to keep the vowel short. The American single 's' spelling makes no sense to me.
    Proofed
    4th December 2020 at 16:59
    Hi, Sue. Thanks for your comment. It's true that the spelling 'focused' here doesn't follow the same pattern as many similar words, but there are a lot of words in English that don't follow conventional spelling patterns, so it isn't that unusual.
Jeff
4th December 2020 at 16:31
Yes. The split digraph without the additional 's' would change it to a "yoo" sound like "using".
    Proofed
    4th December 2020 at 17:00
    Hi, Jeff. Thanks for your comment. Unfortunately, there aren't many rules in English that don't have exceptions to them! This is one of those cases, where 'focused' has become the standard spelling in usage even though it doesn't follow the same spelling pattern as some similar words.
Simon McCallion
3rd February 2021 at 11:37
If we were to have a steadfast rule, I would quite like it if we used one spelling for the past participle, and one for the adjective, but is not ever going to happen, as we do not approach it like the French do. Furthermore, I personally love English's idiosyncrasies and that we can have a disagreement about the spelling of aword, especially across The Pond!!!
Shani TF
9th February 2021 at 12:21
I wouldn't say that "focussing" is rare. It's just the British variant. Anyone in the UK who spells "focussing" with one S is being influenced by US English. I'm really tired of reading articles that tout American English as the "more common" or "proper" version.
    Proofed
    9th February 2021 at 12:34
    Hi, Shani. We don't say 'focussed' is wrong anywhere, just that it is a less common spelling, especially outside the UK. And, as the link in the post shows, 'focused' has appeared more frequently than 'focussed' in British English since at least the 1920s, so this is hardly a new phenomenon! Ultimately, English changes over time and American English has had a big influence on those changes over the past century. Our aim in these posts is to show the current accepted usage, so we can't ignore those changes. Hope that helps.
      Shani TF
      9th February 2021 at 16:00
      Nowhere did I say that you said it was wrong. I said that it's not rare. It's just the UK variant. In fact, they use it in the UK, Australia and, to my knowledge, India. It is far from "rare" or "uncommon" outside of the UK.
      Grhm
      17th June 2021 at 02:22
      I'm afraid your assertion that the double-s spelling is "far from rare" isn't supported by the statistics, Shani. Look at the graph in the article. It shows that the single 's' spelling is used 400 times more frequently than the double-s spelling.
      Grhm
      17th June 2021 at 02:28
      Actually, looking at it again, I think it's about 40 times more frequently, not 400. (Oops!) That's still loads, though.
Grhm
17th June 2021 at 02:00
For what it's worth, I'm British, in my late 50s, and I've always spelt "focused" with one 's'. The double-s spelling seems to me only to have come to prominence very recently. British dictionaries do now record it as an alternative spelling (grudgingly in the case of Collins, who relegate it to a 'language note' where they say "the spelling 'focussed' is also used")... but it still strikes me as careless and ignorant. It jars, and I'm irritated whenever I see it. Mind you, I'm very easily irritated!
    Alison
    20th June 2022 at 14:39
    I completely agree with you. I generally loathe American spellings (the absence of 'u' in colour and the adoption of 'dispatch' instead of despatch really grates, but I have never used a double 's' in focused - it just looks wrong.
Alexander
10th November 2021 at 15:23
(GRHM, "I think it's about 40 times more frequently") I've just looked in scholar.google.com (it is a special browser for scientific publications). The numbers for "focussing/focusing and focussed/focused in all publications are (in thousands) 478/4720 and 730/6090, respectively. Thus, the ratio of ss-to-s is around 10-12%, not ~1/40 (which is 2.5%), i.e. not very rare.
Johnny
2nd December 2021 at 14:37
My 1901 Chambers dictionary has focussed as a rare variant. I am a British English teacher and the 'double S' variant is just annoying - it draws a stress towards the second syllable, when it should be on the first. From the Latin word 'loco' (a verb related to 'locus' = place) we have: 'locate'. Perhaps if their had been a verb 'foco' (rather than just the noun 'focus'), English would have ended up with 'focated' instead. Alternatively we could amend the suffix to -t: "The locust focust its attention"
    Proofed
    3rd December 2021 at 10:51
    If only English were that logical! As we note in the post, though, 'focused' is the standard spelling now in all dialects, so hopefully you don't have to encounter the double 's' version too often.




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