1. Ready for uSe. E.g. "The graph plotter' S fixed and on-line again". 2. Interactive aS oppoSed to batch. AcceSSible via a computer (or terminal), rather than on paper or other medium. 3. Of a uSer, actively uSing a computer SyStem, eSpecially the Internet. E.g "I haven' t been on-line for three dayS." "On-line" Should be hyphenated becauSe it iS compounded from two wordS but the hyphen iS often omitted in nameS of organiSationS or ServiceS. (1998-12-22)
