How to Say "boundary line" in Spanish
The Spanish word for “boundary line” is “frontera” — B1 level. This is a very common word in everyday Spanish.
English → SpanishB1
nounB1
A marked physical division
Examples
Tuvimos que mostrar nuestros pasaportes al cruzar la frontera.
We had to show our passports when crossing the border.
La frontera entre Estados Unidos y Canadá es la más larga del mundo.
The border between the United States and Canada is the longest in the world.
La pequeña ciudad fronteriza dependía del comercio internacional.
The small border town depended on international trade.
Gender Alert
Remember that 'frontera' is always a feminine noun, so you must use 'la' or 'una' with it: 'la frontera'.
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