Between lines. / (transport) Between (or with) two airlines.

To write or insert between lines already written or printed, as for addition or correction. / To arrange in alternate lines. / To imprint or mark with lines.

(transitive) To insert between the lines of a document.

plural of interlineation

A notation made between the lines, especially in a handwritten document; interlining.

Third-person singular simple present indicative form of interline

simple past tense and past participle of interline

(rare) Alternative form of interlinear

A protective layer between a external cover and a filling, especially as a fire barrier. / A passenger whose journey involves changing from one airline to another.

plural of interliner