der Kurs
course
A class or series of lessons on a specific topic.
Ich habe mich für einen Italienischkurs angemeldet.
I signed up for an Italian course.

course / rate
Loading your saved state.
course
A class or series of lessons on a specific topic.
Ich habe mich für einen Italienischkurs angemeldet.
I signed up for an Italian course.

The meaning of 'Kurs' depends heavily on context. Pay attention to the verbs and nouns in the sentence: Is it about learning (m01), money (m02), a direction (m03), or politics (m04)?
Ich mache einen Kochkurs.
I'm taking a cooking course.
In an educational context, 'Kurs' is often used with verbs such as 'besuchen' (to attend), 'machen' (to take/do), or 'belegen' (to take/enroll in). You can also 'sich für einen Kurs anmelden' (sign up for a course).
Nächstes Semester möchte ich einen Spanischkurs belegen.
Next semester I want to take a Spanish course.
In a financial context, people talk about the 'Kurs einer Aktie' (the rate/price of a stock) or 'einer Währung' (of a currency). Typical verbs are 'steigen' (to rise), 'fallen' (to fall), 'sinken' (to drop), or 'stabil sein' (to be stable).
Der Kurs der Technologie-Aktien ist heute stark gestiegen.
The rate of technology stocks rose sharply today.
In shipping or aviation, 'Kurs' is used with verbs such as 'halten' (to maintain), 'ändern' (to change), or 'verlassen' (to leave). The phrase 'vom Kurs abkommen' means to leave the planned route.
Der Pilot musste den Kurs ändern, um das Gewitter zu umfliegen.
The pilot had to change course to fly around the thunderstorm.
When it comes to politics or a company strategy, 'Kurs' is used with verbs such as 'fahren' (to pursue), 'verfolgen' (to follow/pursue), or 'beibehalten' (to maintain).
Die Firma verfolgt einen neuen, umweltfreundlichen Kurs.
The company is pursuing a new, environmentally friendly course.
politics / policy
'die Politik' and 'der Kurs' can both describe what direction a government, party, or organization is taking. 'Politik' refers more to the overall actions, decisions, and goals in an area. 'Kurs' emphasizes the direction or line being pursued. So you can say that a party changes its 'Politik' (policy), or more specifically, that it takes a new 'Kurs' (course). The words can be confused because both appear in topics such as government, economics, or business. However, 'Kurs' is only the orientation or direction, not all political action as a whole.

Nach der Wahl ändert die Partei ihren Kurs in der Umweltpolitik.
After the election, the party is changing its course on environmental policy.
Die neue Politik der Stadt soll mehr Wohnungen für Familien schaffen.
The city's new policy is intended to create more housing for families.