supplement
US /ˈsʌpləmənt/
・UK /'sʌplɪmənt/
B1
noun
- Added extra to support or make something complete
- Vitamins, etc. added to diet for health reasons
- Additional section, e.g. of a newspaper
verb
- To add extra to support or make something complete
Examples
The farmer adds a supplement to the horse's feed.
a $20 supplement for each extra night