noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Initialism of formerly restricted data: a classification level below RD that allows sharing among military agencies. US, abbreviation, alt-of, initialism, uncountable
2. 2
   Abbreviation of friend. Internet, abbreviation, alt-of, no-plural

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.