 <p>To combine all three of the above answers, you need the stopwords_en.txt as it begins testing for English language text</p> <p>From <a href="http://wiki.apache.org/solr/LanguageAnalysis#Stopwords" rel="nofollow">http://wiki.apache.org/solr/LanguageAnalysis#Stopwords</a></p> <blockquote> <p>Stopwords affect Solr in three ways: relevance, performance, and resource utilization.</p> <p>From a relevance perspective, these extremely high-frequency terms tend to throw off the scoring algorithm, and you won't get very good results if you leave them. At the same time, if you remove them, you can return bad results when the stopword is actually important.</p> <p>From a performance perspective, if you keep stopwords, some queries (especially phrase queries) can be very slow.</p> <p>From a resource utilization perspective, if you keep stopwords, the index is much larger than if you remove them.</p> <p>One tradeoff you can make if you have the disk space: You can use CommonGramsFilter/CommonGramsQueryFilter instead of StopFilter. This solves the relevance and performance problems, at the expense of even more resource utilization, because it will form bigrams of stopwords to their adjacent words.</p> </blockquote> <p>What you need to do is copy the original version located in the /conf/lang folder of your solr directory into just the /conf directory</p> <pre><code>cp PATH/TO/solr/conf/lang/stopwords_en.txt PATH/TO/solr/conf </code></pre>