A piece of secular vocal music of a kind popular in France in the late Renaissance and early Baroque period, from about 1570 until around 1650.

A short course of additional training or updating knowledge of one's profession.

plural of back course

(aviation) The approach course formed by the rear lobe of the signal pattern of a localizer antenna array (the portion of the localizer signal emitted from the rear face of the antenna array), oriented in the reciprocal direction to the primary approach course (i.e., the back course - if a usable back course exists at all - will be rotated 180° from the primary course). Not all localizers produce a usable back-course signal; newer equipment radiates very little signal into the rear and side lobes, not enough to allow for a back-course approach.

plural of refresher course

There will always be problems in a romantic relationship.

(nautical) On a mizzenmast, the lowest sail

(roofing) The last or top course of roofing materials, such as tile, roll roofing, shingles, etc. that covers the ridge and overlaps the intersecting field roofing.

(idiomatic) A natural or logical outcome. / (idiomatic) An expected or customary outcome.

(idiomatic) Following the intended route. / (idiomatic) Proceeding smoothly as planned. / (idiomatic) Likely to happen or to undergo something.