parallel

One of a set of parallel lines.

Direction conformable to that of another line.

A line of latitude.

An arrangement of electrical components such that a current flows along two or more paths; see in parallel.

Something identical or similar in essential respects.

A comparison made; elaborate tracing of similarity.

(military) One of a series of long trenches constructed before a besieged fortress, by the besieging force, as a cover for troops supporting the attacking batteries. They are roughly parallel to the line of outer defenses of the fortress.

(printing) A character consisting of two parallel vertical lines, used in the text to direct attention to a similarly marked note in the margin or at the foot of a page.