The purpose of this study was to develop a parallel bilingual vocabulary measure for the comparative study of receptive and expressive vocabulary growth in young Armenian-English bilinguals. The measure was comprised of four independent vocabulary lists equivalent on age of acquisition ratings. The lists were counterbalanced across four tasks, Armenian picture identification, Armenian picture naming, English picture identification, and English picture naming. This article includes a detailed description of the procedures employed to develop the measure and evidence regarding its reliability and validity. The procedures from this study may be valuable in developing parallel vocabulary measures for other minority-majority language combinations.