1.

Cur, Curs, Cours

Current

2.

Curriculum

3.

Precursor

4.

Cursory

5.

Discourse

6.

Corridor

7.

Occur

8.

9.

Recourse

10.

Currency

= Run

(1) adjective: accepted, in the running now, used, or practiced by most people;
(2) noun: a running flow of water, electricity

the entire run of classes offered to a student

forerunner (one who comes before)

quick, as a glance; "running over with your eyes"

a long-running speech/discussion; talking or talk between people, conversation

a long, running hallway

to take place, to happen

Recurring

occurring again and again

something that one uses to accomplish an end especially when the usual
means is not available

something used as a medium of exchange, a measure of value, or a means
of payment (= MONEY)