subordinating conjunction
subordinating conjunction (conjunción subordinante)
a joining word such as because, although or when that begins a dependent clause.
Example
We stayed inside because it was raining. (Because makes it was raining depend on the main clause.)
In Spanish
subordinating conjunction (conjunción subordinante) — una palabra de enlace como because, although o when que inicia una cláusula dependiente.
We stayed inside because it was raining. (Because hace que it was raining dependa de la cláusula principal.)