flight level
Word Rarity
Uncommon
Frequency: Zipf frequency 4.75 in modern English
21
Scrabble Score
11
Letters
2
Syllables
8
Unique Chars
Meaning
noun
Any of several internationally agreed standard altitudes that are based on atmospheric pressure rather than on true height
noun
a pressure altitude measured in terms of hundreds of feet above sea level (ie. flight level 120 (FL120) is 12,000 ft. ASL)