Suicide note is a term commonly used to describe a document or message left behind by someone who has taken their own life. However, there are other phrases that can be used to describe this type of communication. For example, one could use the term "final letter", "farewell note", or "goodbye message" as an alternative to "suicide note". Other synonyms include "last words", "parting thoughts", and "end of life message". It's important to be sensitive when discussing this topic, so using different words can help to avoid stigmatizing language or making assumptions about the person who left the note.