grammar.conjunctions.aunque
Aunque: although / even if
One word, two readings set by mood: aunque + indicative = although (fact); aunque + subjunctive = even if (hypothesis).
grammarB1v0.1.0
Explicación
Aunque es tarde, voy ('although it IS late') vs aunque sea tarde, voy ('even if it turns out late'). The mood is the meaning.
Conversational cousins: igual / de todos modos ('anyway'), sin embargo / no obstante ('however', formal). Full mood mechanics in the concession-clause rule.
Ejemplos
Aunque no me guste, lo haré.
Even if I don't like it, I'll do it.
Even if I don't like it, I'll do it.
Región: global
Aunque vivió diez años allá, no habla guaraní.
Although he lived there ten years, he doesn't speak Guaraní.
Although he lived there ten years, he doesn't speak Guaraní.
Región: global