the language of the country of one's birth / native language, mother tongue, first language

report, information

international

a historical period where social disorder is so great due to war, disease, political disorder etc. that there is little or no cultural development; Dark Ages

Japanese-Japanese dictionary

dark matter

(construction, architecture) The large, central pillar that holds up a traditional Japanese house. / The breadwinner of a household or organization.

a patriot (person who loves, supports and defends their country)

The Republic of Finland

the French Republic