こうよう公用kouyou
1.

A term referring to activities or affairs conducted by the government or public organizations in fulfillment of their official duties.

2.

Describes the use or allocation of resources, services, or documents specifically for public or governmental purposes rather than personal ones.

3.

Refers to formal language or communication recognized and utilized in official contexts by governments or international entities.

4.

Pertains to historical roles associated with serving local lords, particularly in the context of carrying out official tasks or responsibilities.

5.

Indicates standardized written forms or documents used in public administration at different historical periods.

Example:

彼は公用で大阪に行った。

こうようご公用語kouyougo
1.

A language that is formally recognized for use in official and public contexts within a country or community, especially in settings like government and legal documents.

2.

A language or languages designated by a state or governing body as acceptable for communication in official matters, reflecting the multilingual nature of a society.

3.

A language that has been sanctioned by a nation's institutions for use in proceedings and documentation that require a formal standard of communication, often necessary for governance and public administration.

4.

The language(s) that a government or public organization officially endorses for use in its operations and interactions with the public, sometimes covering multiple languages in a multilingual nation.

Example:

マオリ文化は私たちの間にますます広がり、彼らの言語は公用語の1つになっています。

こうようしゃ公用車kouyousha
1.

A vehicle that is designated for use by government officials or public service employees for work-related purposes.

2.

A mode of transportation provided by an organization or institution for staff to carry out their official duties, often including government agencies.

3.

A car or other type of vehicle that is utilized for official functions, meetings, or transportation of personnel on behalf of an authority.

こうようぶん公用文kouyoubun
1.

A type of written communication used by government entities and public organizations for formal purposes, adhering to specific formats and regulations.

2.

Documents or texts that are recognized and authorized for use in official capacities by state or public institutions, often characterized by a standardized structure.

3.

The written form of language employed in public affairs and governmental matters, intended to convey information or directives in a formal context.