complimentary course
nounUK /ˌkɒmplɪˈmentəri kɔːs/
US /ˌkɑːmplɪˈmentəri kɔːrs/
A free class you can take without paying any money.
The hotel offers a complimentary course in yoga every morning.
RELATED WORDS
OTHER MEANINGS
2. A class given as a gift or bonus with a purchase.
Buy a laptop and get a complimentary course in coding.
3. A polite or flattering lesson, often used humorously.
He gave me a complimentary course on how to dress better.
4. A free short program offered by a company to promote its services.
The gym's complimentary course attracted many new members.