Oblique motion means that one voice moves, either stepwise or by leap, while the other voice remains on the same note, whether held or repeated. The example below abundantly illustrates oblique motion, alongside contrary motion and similar motion. It further clarifies how oblique motion can involve only consonances (bar 1), result from suspensions with their preparations (bars 2, 3 and 4), or result from passing notes (the final eighth note of bar 3 and beat 2 of bar 4).
Other contrapuntal motions are: