trend vs appreciation

trend and appreciation both are nouns.

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

As nouns, appreciation is a hypernym of trend; that is, appreciation is a word with a broader meaning than trend:

Other hypernyms of trend include discernment, perceptiveness, taste.

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

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