Definitions

1. noun

the period of most intense or successful activity; the prime or most flourishing period of something

“The company was in its heyday when it acquired several other businesses and expanded its operations.”

2. noun

the period of greatest popularity or achievement

“The singer’s heyday came in the 80s when she released several hit albums.”

3. verb

to bring into or bring back into a state of vigorous health or prosperity

“The new investment strategy helped to heyday the economy.”

4. verb

to bring to a peak or a state of flourishing

“The company’s new marketing strategy helped to heyday its sales.”