planner vs manoeuvrer

planner and manoeuvrer both are nouns.

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

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

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

planner (noun)	manoeuvrer (noun)
a notebook for recording appointments and things to be done, etc.	a person skilled in maneuvering
a person who makes plans