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.
Verb
To construct or place something parallel to something else.
Of a path etc: To be parallel to something else.
Of a process etc: To be analogous to something else.
