(transitive) To place (objects) into a line (usually used with "up"); to form into a line; to align.

(transitive) To cover the inner surface of (something), originally especially with linen. / To reinforce (the back of a book) with glue and glued scrap material such as fabric or paper.

(transitive, now rare, of a dog) To copulate with, to impregnate.

(film, theater) Words spoken by the actors. / (fortifications) Dispositions made to cover extended positions, and presenting a front in but one direction to an enemy.

Third-person singular simple present indicative form of line

plural of line

Having a lining, an inner layer or covering. / (of paper) Having lines, ruled. / (of skin) Having visible lines or wrinkles.

simple past tense and past participle of line

Consisting of parts arranged in a single line. / (writing) Inserted in the flow of a text. / (computing, of source code) Of a different language than the outer enclosing code.

A covering for the inside surface of something. / The material used for such a covering. / The act of attaching such a covering.