plural of real number line

plural of single yellow line

plural of 18-yard line

plural of neutron drip line

Third-person singular simple present indicative form of walk in straight lines

present participle of walk in straight lines

simple past tense and past participle of walk in straight lines

To adhere to a plan, protocol, or train of thought without any deviation or distraction; to stick to the straight and narrow. / Used other than figuratively or idiomatically: see walk, straight, line.

plural of complex projective line

plural of line drawn on water