1. unlink - Noun
2. unlink - Verb
To separate or undo, as links; to uncoil; to unfasten.
Source: Webster's dictionaryFrom the Preferences, users can choose to unlink from the current account, to change the folders that are being synced, make changes to the download and upload rate, and to use proxies if necessary. Source: Internet
While open/creat tell you when new files are created, and the read/write variants tell you when files are modified, unlink and rename tell you when files are deleted or renamed. Source: Internet