Definition of first down in English:

first down

Line breaks: first down

noun

American Football
The score achieved by a team who have kept possession of the ball by advancing at least ten yards in a series of four downs.
More example sentences
  • The Chiefs' last two games have yielded some huge numbers - more than 70 first downs, 1,000 total yards and 101 points.
  • The first-team offense netted 297 yards and 12 first downs.
  • Seattle's first-string offense had just 16 total yards and no first downs in the first quarter.

Definition of first down in: