deviser vs manoeuvrer

deviser and manoeuvrer both are nouns.

Word	Noun	Adjective	Verb	Adverb
deviser	Yes	No	No	No
manoeuvrer	Yes	No	No	No

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

Other hyponyms of deviser include designer, intriguer, maneuverer, plotter, schemer, strategian, strategist, tactician.

deviser (noun)	manoeuvrer (noun)
a person who makes plans	a person skilled in maneuvering