| Organization | Group of users within an instance | Organisation | Organization | replace | Everywhere |
| Organization Domain | Domain giving context where a user belongs | Primary Domain, Verified Domains, Org domains, verify your domain | Organization Domain | replace | UI + Docs |
| User (Human) | User with interactive authentication flows | Human, Human User, User: Type Human | User (Human) | replace | UI + Docs |
| Service Account | User with non-interactive authentication flows | Machine User, machine user, Service User, Machine Account, Technical Account, User: Type Machine | Service Account | replace | UI + Docs |
| User | UI display label for user identity | Display Name | User | replace | UI |
| Project | Container for applications sharing a role context | _(none — already canonical)_ | Project | keep | Everywhere |
| Project Grant | Delegation of project access to another organization | Grant, Grants, Organization Grant, Delegated Access | Project Grant / Project Grants | replace | UI + Docs |
| Application | Software or service secured using ZITADEL | _(none — already canonical)_ | Application | keep | Everywhere |
| Role Assignment | What a user is allowed to do (roles + org + user) | Authorization, external authorization, User Grant, Roles and Authorizations | Role Assignment | replace | Everywhere |
| Administrator | Role granting administrative privileges (role context only, not as a person label) | Manager, Add Manager, Add a Manager, Membership, Member, Member grants | Administrator / Add Administrator / Add an Administrator | replace | UI + Docs |
| Internal / External indicator | Shows if a user belongs to the same or a different org | _(missing indicator)_ | internal / external | replace | UI indicator |
| Object descriptions | All resource descriptions must use end-user language | internal / technical wording | clear end-user language | replace | UI + Docs |
| Complement Token | Flow type for actions executed during token creation. In UI use "Complement Token"; in API use `flowType = 2` (CustomiseToken). Docs must not show PreUserinfoCreation=3 for this type. | Compliment Token, CustomiseToken, CustomizeToken | Complement Token | replace | Everywhere |
| Invite Code | One-time code used to invite a user to set up authentication (secret generator and user-invite flows) | Invitation Code, Invitation code | Invite Code | replace | UI + Docs |