The word "阿森" is formed by combining two characters: "阿" is constructed with the radical "阝" (阜) and the component "可", serving here primarily for its phonetic value "a", while "森" is an ideographic compound of three "木" (tree) characters, denoting forest, but used here for its phonetic sound "sen". Together, they function as a phonetic transliteration, often representing foreign syllables like "A-sen" in names or terms.