augment
/ɔːɡˈmɛnt/verb
To increase the size, amount, or value of something by adding to it.
Example sentences
- “Many teachers augment their income by tutoring.”
- “The city hired extra officers to augment its police force.”
- “The museum augmented its collection with gifts from private donors.”
Formal; often with income, supply, force, or power. Everyday alternatives are 'increase' and 'boost'.