Aircraft (6)
'aircraft' is the definition.
(jet is a kind of aircraft)
This is the entire clue.
(Other definitions for jet that I've seen before include "Hard black mineral or plane engine" , "Kind of plane, or a glossy black" , "Deep black" , "Black aircraft?" , "A spring in ballet" .)
'aircraft' is the definition.
(glider is a kind of aircraft)
This is all the clue.
(Other definitions for glider that I've seen before include "Sailplane" , "Motorless plane" , "Plane without an engine" , "Aircraft designed to fly without an engine" , "Aircraft supported solely by air" .)
'aircraft' is the definition.
(I know that planes is a type of heavier-than-air craft)
This is all the clue.
(Other definitions for planes that I've seen before include "Those flying" , "Aircraft and tools for smoothing wood" , "Flat surface in Naples" , "Jets maybe" , "Aircraft from Naples" .)
'aircraft' is the definition.
(I know that plane is a type of heavier-than-air craft)
This is all the clue.
(Other definitions for plane that I've seen before include "Smoother" , "Tree - figure - aircraft" , "Woodworking tool" , "that soars into the sky" , "What imitates bird" .)
'aircraft' is the definition.
(aeroplane is a kind of aircraft)
This is the entire clue.
(Other definitions for aeroplane that I've seen before include "Lancaster?" , "Flier" , "Spitfire, for example" , "Flying vehicle" , "Fixed-wing aircraft" .)
'aircraft' is the definition.
(airliner is a kind of aircraft)
This is all the clue.
(Other definitions for airliner that I've seen before include "Passenger aircraft" , "One going aloft" , "Eg, Jumbo, Concorde" , "Passenger craft" , "Large aircraft" .)
(Another definition for jetplane that I've seen is " Harrier, say".)