FWIW (again, not sure about rules for joining words in Swedish):<p><pre><code>    for abb in jk jf;
    do
      echo &quot;Occurances of ${abb}:&quot;
      grep ${abb} -c \
      &#x2F;usr&#x2F;share&#x2F;dict&#x2F;{bokmål,nynorsk,british*,svenska}
    done

    Occurances of jk:
    &#x2F;usr&#x2F;share&#x2F;dict&#x2F;bokmål:90
    &#x2F;usr&#x2F;share&#x2F;dict&#x2F;nynorsk:39
    &#x2F;usr&#x2F;share&#x2F;dict&#x2F;british-english-insane:20
    &#x2F;usr&#x2F;share&#x2F;dict&#x2F;svenska:70
    Occurances of jf:
    &#x2F;usr&#x2F;share&#x2F;dict&#x2F;bokmål:31
    &#x2F;usr&#x2F;share&#x2F;dict&#x2F;nynorsk:32
    &#x2F;usr&#x2F;share&#x2F;dict&#x2F;british-english-insane:0
    &#x2F;usr&#x2F;share&#x2F;dict&#x2F;svenska:0
</code></pre>
So jf seems pretty safe for English, at least. Apart from when adding
&quot;jk&quot; to your vimrc …