こくないせん
Meanings
Noun
1. domestic air route; domestic airline (company)
Pitch accent
くないせん
Composed of
internal; domestic
line; stripe; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad)
Examples (2 in total)
My father is a pilot on the domestic line.
Smoking is now prohibited on all domestic flights.