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So apparently 'acudir' means 'to go to', (No podemos acudir a la fiesta) and 'to come', but that seems very similar to the definitions of asistir and ir. (No podemos asistir a la fiesta) The sentence I saw was 'acudierien en masa' - "they went in mass" - Couldn't that just be "Fueron en masa?" Wh...