1. A violation in tennis or volleyball in which a player's foot crosses the baseline or service line during a serve.
Usage: Common in tennis and volleyball

1. To commit a footfault; to step over the baseline or service line while serving in tennis or volleyball.
Usage: Present participle of 'footfault'

Examples

• The tennis player was footfaulting repeatedly during the match, losing several points.
• The server was footfaulting on nearly every serve in the first set.
• Footfaulting is an automatic loss of the serve in professional tennis.
• She improved her technique to avoid footfaulting during important matches.
• The referee called footfaulting on the volleyball player's jump serve.
• Beginners often struggle with footfaulting when learning to serve properly.