Noun free fall has 2 senses
  1. free fall - the ideal falling motion of something subject only to a gravitational field
    --1 is a kind of
    drop, fall
  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"
    --2 is a kind of decrease, decrement
    --2 has particulars: correction; voltage drop
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