The database contains over a million synonyms obtained from various resources. These are displayed with the relevant quality flags as shown below. The list of synonyms can be copied to the clipboard using the “Copy All Synonyms” button. Valid Synonyms are those that have been manually curated by members of our curation team. Good Synonyms have been obtained from a variety of sources and using complex workflows for cross-referencing are ranked as being of higher quality than the remaining collection of "Other Synonyms". The synonyms are not warranted as perfect or complete but are the results of our best efforts.