An user German
says…

Aus
Adposition
  ist
Auxiliary
  es
Pronoun
sobald
Subordinating conjunction
  entweder
Subordinating conjunction
  der
Determiner
  Ball
Noun
  oder
Coordinating conjunction
  ein
1
Determiner
  Fuß
🦶
Noun
  die
Determiner
  Linie
Noun
  überschreiten
Verb
.

It is over as soon as either the ball or a foot crosses the line.
Words and sentences
New
Aus

  1. an out; the end of play for an individual or a team
  2. the out of bounds area
  3. end

New
entweder

either

New
der

New
Ball

  1. ball (round or roundish object, most commonly used in games)
  2. (informal) pass, play

1
New
ein

🦶
New
Fuß

  1. foot (body part)
  2. footing
  3. pedestal
  4. foot (unit of length; always in the singular)
  5. metrical foot
  6. leg

New
die

New
Linie

  1. line
  2. file
  3. equator (nautical)

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