Linguistic aptitude refers to an individual's capacity to learn and process language-related patterns, particularly the abilities associated with acquiring a language, identifying grammatical relationships, recognizing sound patterns, and learning correspondences between linguistic forms and meanings ^[1][2]. In second-language acquisition research, language aptitude is commonly treated as a multidimensional construct involving abilities such as phonetic coding, grammatical sensitivity, inductive language learning, and the capacity to associate verbal forms with meanings ^[1]. It is distinguished from current language proficiency, which reflects an individual's attained level of performance in a particular language, and from general intelligence, although these constructs may be related ^[2]. The precise scope of linguistic aptitude depends on the theoretical framework and the assessment instruments used to operationalize it.