How to say "Form" in Japanese

When translating "form" into Japanese, you must choose carefully between 形態 and 善のイデア. In Japanese, 形態 (けいたい (keitai)) is typically associated with "form, shape, configuration, mode" (Syllabus Level: N2) and represents Refers to the physical or structural form, shape, or configuration of something, or the mode/state in which something exists. Often used in academic or formal contexts for classifying types or structures.. On the other hand, 善のイデア (ぜんのイデア (zennoidea)) maps to "The Form of the Good" (Syllabus Level: C2) and represents Essential structural term in CEFR C2 vocabulary syllabus.. A literal translation of "form" can often sound unnatural to native Japanese speakers if mixed up!