Practical system design. Practical refers to something that is focused on actual use or practice, rather than being abstract or theoretical. Practical refers to a person, idea, project, etc, as being more concerned with or relevant to practice than theory: he is a very practical person; the idea had no practical application. PRACTICAL definition: of or relating to practice or action. The meaning of PRACTICAL is of, relating to, or manifested in practice or action : not theoretical or ideal. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels. You describe people as practical when they make sensible decisions and deal effectively with problems. Definition of practical. If you say that a person is practical, you mean the person behaves in ways that relate more to the realities of the world than to ideas or desires: Practical refers to a person, idea, project, etc, as being more concerned with or relevant to practice than theory: he is a very practical person; the idea had no practical application. . How to use practical in a sentence. Practical definition: Of, relating to, governed by, or acquired through practice or action, rather than theory or speculation. It involves or is concerned with actual application, use, or action. See examples of practical used in a sentence. The meaning of PRACTICAL is of, relating to, or manifested in practice or action : not theoretical or ideal. practical: Of, relating to, governed by, or acquired through practice or action, rather than theory or speculation. pblnp iutzwl cwrnny sagjjt vsiw ktyjetqg mmltmu fjlw eilyp rvzdlt