Words such as of, is, am, were, was, the, for, do, ETC, that search engines deem irrelevant for indexing purposes.
Edit / world wide web search engine term for the little words that are discarded or ignored when doing queries and adding web sites to their databases. These include such words as "the", "to", "is", "an", "of", "for", etc.
This term is often confused with Stop Words. Filter words are common words that search engines remove from web pages before adding them to their databases. These include words along the lines of (the,is,an,of,for,do). As you can imagine, removing these words can save search engines enormous amounts of database space.
Common, meaningless words such as “the, and, or) are removed from search engines databases to save space. Not to be confused with “Stop Words” that are usually adult terms and cause the search engine to stop acquiring the page.
Words such as is, am, were, was, the, for, do, et. al,, that search engines deem irrelevant for indexing purposes.
Common words that search engines remove when adding web page information to their full-text indices because they tend to slow down search queries without improving the results. Common filter words are as follows: the, a, an, or, for, of, but, is and it.