The term 'TOP 40 LISTINGS' refers to a weekly list of the most popular songs in the United States, compiled by Billboard magazine. The two crossword solutions for this term are 'SONGS' (5 letters) and 'HITSONGS' (8 letters). The term 'SONGS' is used to refer to any musical composition, regardless of its popularity. The term 'HITSONGS' is used to refer to songs that have achieved significant commercial success, usually appearing on the TOP 40 LISTINGS.