What does 国内 mean?
国内 is a Japanese noun meaning “domestic, within the country” in English. It is written as 国内 in kanji, こくない in hiragana, and kokunai in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
アメリカへ行くくらいなら、国内にいるほうがましだ。
You might as well stay at home as go to America.