turn vs development

turn and development both are nouns.

Word	Noun	Adjective	Verb	Adverb
turn	Yes	No	Yes	No
development	Yes	No	No	No

As nouns, development is a hypernym of turn; that is, development is a word with a broader meaning than turn:

turn: an unforeseen development
development: a recent event that has some relevance for the present situation

turn (noun)	development (noun)
the act of changing or reversing the direction of the course	act of improving by expanding or enlarging or refining
the act of turning away or in the opposite direction	the act of making some area of land or water more profitable or productive or useful
taking a short walk out and back	(music) the section of a composition or movement (especially in sonata form) where the major musical themes are developed and elaborated
a favor for someone	a recent event that has some relevance for the present situation
(game) the activity of doing something in an agreed succession	a district that has been developed to serve some purpose
turning or twisting around (in place)	processing a photosensitive material in order to make an image visible
a short performance that is part of a longer program	(biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level
a movement in a new direction	a process in which something passes by degrees to a different stage (especially a more advanced or mature stage)
an unforeseen development	a state in which things are improving; the result of developing (as in the early part of a game of chess)
a circular segment of a curve
(sports) a division of a game during which one team is on the offensive
a time period for working (after which you will be relieved by someone else)

turn (verb)	development (verb)
twist suddenly so as to sprain
change to the contrary
go sour or spoil
pass into a condition gradually, take on a specific property or attribute; become
undergo a transformation or a change of position or action
change color
become officially one year older
have recourse to or make an appeal or request for help or information to
direct at someone
shape by rotating on a lathe or cutting device or a wheel
let (something) fall or spill from a container
alter the functioning or setting of
cause (an object) to assume a crooked or angular form
to break and turn over earth especially with a plow
to change orientation or direction
cause to move around a center so as to show another side of
cause to move around or rotate
pass to the other side of
move around an axis or a center
to send or let go
cause to move along an axis or into a new direction
channel one's attention, interest, thought, or attention toward or away from something
get by buying and selling
accomplish by rotating
undergo a change or development
cause to change or turn into something different;assume new characteristics