a 'noble learner', a disciple in higher training, i.e. one who pursues the 3 kinds of training (sikkhā), is one of those 7 kinds of noble disciples who have reached one of the 4 supermundane paths or the 3 lower fruitions (s. ariya-puggala), while the one possessed of the 4th fruition, or Arahatta-phala, is called 'one beyond training' (asekha, lit. 'no more learner').
The worldling (puthujjana) is called 'neither a noble learner, nor perfected in learning' (n'eva-sekha-nāsekha). Cf. Pug. 23-25.