trade union movement vs trades union

trade union movement and trades union both are nouns.

Word	Noun	Adjective	Verb	Adverb
trade union movement	Yes	No	No	No
trades union	Yes	No	No	No

trade union movement (noun)	trades union (noun)
an organized attempt by workers to improve their status by united action (particularly via labor unions) or the leaders of this movement	an organization of employees formed to bargain with the employer