from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To grade again, give a new grade or grading to.
- v. To regroup or reassign.
- v. To change the classification of potentially secret documentation.
- v. To retire or recede.
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To retire; to go back.
from The Century Dictionary and Cyclopedia
- To retire; go back; retrograde.
re- + grade (Wiktionary)