Give rein to and Make merry

Make merry and give rein to are semantically related. In some cases you can use "Make merry" instead a verb "Give rein to".

Make merry verb - Celebrate noisily, often indulging in drinking; engage in uproarious festivities.

Give rein to and make merry are semantically related. Sometimes you can use "Give rein to" instead a verb phrase "Make merry".