Meaning of "decrease" in Essential American English Dictionary

decrease

verb us /dɪˈkris/ (present participle decreasing, past tense and past participle decreased)

B1 to become less, or to make something become less:

Prices have decreased.
decrease noun

B1

There has been a decrease in the number of violent crimes.
→ Opposite increase

(Definition of “decrease” from the Webster's Essential Mini Dictionary © Cambridge University Press)