徒弟 (túdì) is the everyday word for an apprentice who learns a craft or trade directly from a master (师父), common for traditional manual skills like carpentry or cooking. Compared to 弟子 (dìzǐ), which is formal and used for academic or religious followers, 徒弟 emphasizes the hands-on, vocational relationship. 传人 (chuánrén) refers to someone who inherits and continues a skill or tradition as a successor, not just a learner.