1. (

• free_fall

) the ideal falling motion of something subject only to a gravitational field ;

2. (

• drop ,
• dip ,
• fall ,
• free_fall

) a sudden sharp decrease in some quantity; "a drop of 57 points on the Dow Jones index"; "there was a drop in pressure in the pulmonary artery"; "a dip in prices"; "when that became known the price of their stock went into free fall" ;