[{"Bold_text": "noun", "List Items": ["Usuallyrudiments.the elements or first principles of a subject:the rudiments of grammar.a mere beginning, first slight appearance, or undeveloped or imperfect form of something:the rudiments of a plan.", "the elements or first principles of a subject:the rudiments of grammar.", "a mere beginning, first slight appearance, or undeveloped or imperfect form of something:the rudiments of a plan.", "Biology.an organ or part incompletely developed in size or structure, as one in an embryonic stage, one arrested in growth, or one with no functional activity, as a vestige."]}]