flight

flight /ˈflaɪt/ noun
plural flights
flight
/ˈflaɪt/
noun
plural flights
Britannica Dictionary definition of FLIGHT
1 
[noncount]
a  : the act of flying : the act of moving through the air by the use of wings
b  : the act of moving through the air or through outer space
2 
[count, noncount] : the act of running away in order to escape from danger
3 
[count]
a  : a journey on an airplane
b  : the airplane that is making a journey
4 
[count] : a group of similar birds, airplanes, etc., that are flying through the air together
5 
[count] : a series of stairs going from one level or floor to another

flight of fancy

also flight of imagination/fantasy
: an idea, story, etc., that shows great imagination but is very unlikely to be true or practical

put (someone) to flight

formal + old-fashioned
: to cause (someone) to leave or run away

take flight

1 
: to leave or run away from danger
2 
US : to begin flying
3 
US : to begin a period of rapid activity, development, or growth