Noun
top 40 (plural top 40s)
(music, radio) A radio format for popular music, usually including the 40 most popular songs at a given time.
Coordinate term: CHR
I was listening to a top 40 radio station.
Top 40 (plural Top 40s)
Alternative letter-case form of top 40
All of the singles from Afterburner were Top 40 hits, with two ("Sleeping Bag" and "Stages") hitting no. 1 on the Mainstream Rock chart. Source: Internet
" became a top 10 country hit in the US, after debuting at No. 24 after only five days of airplay; but only made the Top 40 on the pop charts. Source: Internet
Compare this with the two Top 3 hits produced by Faith and Listen Without Prejudice's scant total of one Top Tenner and one single which missed the Top 40 altogether. Source: Internet
After flawlessly singing Sia’s “Chandelier” to an incredulous row of coaches on the show, he went on to nab three Top 40 hits and three No. 1s on the Hot Christian Songs chart. Source: Internet
Brown's "Papa Don't Take No Mess" would be his final single to reach the No. 1 spot on the R&B charts and his final Top 40 pop single of the 1970s, though he continued to occasionally have Top 10 R&B recordings. Source: Internet
After all, here is SOPA, trembling on the verge of passage, ready to break the Internet on a fundamental level — all in the name of preserving Top 40 music, reality TV shows, and Ashton Kutcher movies. Source: Internet