411 REFERENCE · Wiktionary
PHAK
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
phak pha̍k
English
Proper noun
en aviation en Pilot's Handbook of Aeronautical Knowledge.
411 REFERENCE · Wiktionary
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.