appreciation vs trend

appreciation and trend both are nouns.

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

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

Other hyponyms of appreciation include connoisseurship, vertu, virtu, style, vogue, delicacy, discretion, culture.

appreciation (noun)	trend (noun)
a favorable judgment	a general tendency to change (as of opinion)
an increase in price or value	the popular taste at a given time
understanding of the nature or meaning or quality or magnitude of something	general line of orientation
delicate discrimination (especially of esthetic values)	a general direction in which something tends to move
an expression of gratitude

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