Definition of scratch line
1 : a starting line for a race
2 : a line that marks the extreme limit of the takeoff for a long jump
3 : a line from which the javelin is thrown and which must not be overstepped by the thrower
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up scratch line? Please tell us where you read or heard it (including the quote, if possible).