supplementary program

noun
UK /ˌsʌplɪˈmentəri ˈprəʊɡræm/
US /ˌsʌplɪˈmentəri ˈproʊɡræm/

An extra program that helps you learn or do more.

The school started a supplementary program to help kids with reading.


OTHER MEANINGS

2. A computer program that adds features to another program.

The supplementary program adds new tools to the drawing app.

3. An extra plan of activities added to a main event.

The festival had a supplementary program of games for children.

4. A course taken in addition to regular classes.

She joined a supplementary program in science on weekends.