字相字義
Từ Điển Thuật Ngữ Phật Học Hán Ngữ
Word-form and word-meaning, differentiated by the esoteric sect for its own ends, 阿 being considered the alpha and root of all sounds and words; the 字 among esoteric Buddhists is the 種子 bīja, or seed-word possessing power through the object with which it is associated.