Definition of grass green
1 : a variable color averaging a strong yellowish green that is yellower and duller than shamrock green or Cyprus green
2 : a moderate yellow green that is greener, lighter, and stronger than average moss green, yellower and deeper than average pea green, and yellower and darker than apple green (see apple green 1)
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
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 grass green? Please tell us where you read or heard it (including the quote, if possible).