be vs trend

be is not a noun while trend is a noun.

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

be (noun)	trend (noun)
	a general tendency to change (as of opinion)
	the popular taste at a given time
	general line of orientation
	a general direction in which something tends to move

be (verb)	trend (verb)
spend or use time	turn sharply; change direction abruptly
work in a specific place, with a specific subject, or in a specific function	to be temporarily popular
have an existence, be extant
have life, be alive
form or compose
have the quality of being; (copula, used with an adjective or a predicate noun)
occupy a certain position or area; be somewhere
be identical to; be someone or something
be identical or equivalent to
represent, as of a character on stage
be priced at
to remain unmolested, undisturbed, or uninterrupted -- used only in infinitive form