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adj.
serving to permit or facilitate further work or activity; "discussed the working draft of a peace treaty"; "they need working agreements with their neighbor states on interstate projects"
adj.
concerned with concrete problems or data rather than with fundamental principles; "applied physics"; "applied psychology"; "technical problems in medicine, engineering, economics and other applied disciplines"- Sidney Hook
adj.
designed for or adapted to a function or use; "functional education selects knowledge that is concrete and usable rather than abstract and theoretical"; "functional architecture"