trust license (n)~ The file used in ClickOnce applications to grant an elevated level of trust to a managed application. Trust licenses must be signed by trust license issuers which must be installed on a client computer prior to deploying the ClickOnce application. trust list (n)~ A signed list of root certification authority certificates that an administrator considers reputable for designated purposes such as client authentication or secure e-mail. trust object (n)~ An object representing a trust relationship.