An open invitation is an invitation that is not addressed to any particular person or group, and it is usually extended to everyone who might be interested. There are various synonyms for open invitation, including general invitation, inclusive invitation, unrestricted invitation, public invitation, blanket invitation, and free-for-all invitation. A general invitation is an invitation that is not specific to any particular audience or group. An inclusive invitation invites all people regardless of their background or social status. An unrestricted invitation is an invitation with no limits or conditions. A public invitation is an invitation that is open to the public, while a blanket invitation welcomes all visitors. Finally, a free-for-all invitation implies that there are no rules or restrictions, and anyone is welcome to participate in the event.