The word(s) "course" appears 72 time(s) in 65 verse(s) in Quran in Muhammad Habib Shakir translation.

(61) And (as for) those of your women who have despaired of menstruation, if you have a doubt, their prescribed time shall be three months, and of those too who have not had their courses; and (as for) the pregnant women, their prescribed time is that they lay down their burden; and whoever is careful of (his duty to) Allah He will make easy for him his affair.

(62) Surely your Lord best knows him who errs from His way, and He best knows the followers of the right course.

(63) Therefore leave them alone to go on with the false discourses and to sport until they come face to face with that day of theirs with which they are threatened;

(64) And we used to enter into vain discourse with those who entered into vain discourses.

(65) That run their course (and) hide themselves,