Solution

ALTITUDE

4 clues

Elevation

Word class: Common noun
Nature of clue: Synonym
Difficulty: Medium
Sources: Boatload Puzzles
Topics: Geography, Numbers - Quantity - Units - Size

Height

Word class: Common noun
Nature of clue: Synonym
Difficulty: Medium
Sources: Boatload Puzzles
Topics: Geography, Numbers - Quantity - Units - Size

Other solutions to Height

Height above sea level

Word class: Common noun
Nature of clue: Description
Difficulty: Medium
Sources: Boatload Puzzles
Topics: Geography, Numbers - Quantity - Units - Size

Pilot's concern

Word class: Common noun
Nature of clue: Use case
Difficulty: Medium
Sources: Boatload Puzzles
Topics: Numbers - Quantity - Units - Size, Travel, Vehicles - Transportation

Words are categorized by artificial intelligence: there can be mistakes.