direction vs trend

direction and trend both are nouns.

Word	Noun	Adjective	Verb	Adverb
direction	Yes	No	No	No
trend	Yes	No	Yes	No

As nouns, trend is a hyponym of direction; that is, trend is a word with a more specific, narrower meaning than direction:

Other hyponyms of direction include aim, bearing, heading, course, east-west direction, north-south direction, qibla, tendency.

direction (noun)	trend (noun)
the act of managing something	a general tendency to change (as of opinion)
the act of setting and holding a course	the popular taste at a given time
a general course along which something has a tendency to develop	general line of orientation
the concentration of attention or energy on something	a general direction in which something tends to move
something that provides direction or advice as to a decision or course of action
a formal statement of a command or injunction to do something
a message describing how something is to be done
a line leading to a place or point
the spatial relation between something and the course along which it points or moves

direction (verb)	trend (verb)
	turn sharply; change direction abruptly
	to be temporarily popular