内ない国こく郵ゆう便びんないこくゆうびんMeanings1noundomestic mailRefers to mail sent within a country, as opposed to international mail. Common in postal contexts.内ない国こく郵ゆう便びんの料りょう金きんは来らい月げつから上あがります。Domestic mail rates will increase from next month.
