Parallel transport, in mathematics using vectors and smooth curves
In music:
Parallel key, the minor (or major) key of a major (or minor) key with the same tonic
Harmonic parallelism, also known as "harmonic planing" or "parallel voice leading"
Parallel fifths, also known as "consecutive fifths", involve the concurrence of successive intervals of a perfect fifth between two voices in parallel motion -- a harmonization generally forbidden in modern musical theory
Other:
Parallel (manga) (ぱられる) is a shōnenmanga by Toshihiko Kobayashi
This disambiguation page lists articles associated with the title Parallel. If an internal link led you here, you may wish to change the link to point directly to the intended article.