pick off vs pluck

pick off is not a noun while pluck is a noun.

Word	Noun	Adjective	Verb	Adverb
pick off	No	No	Yes	No
pluck	Yes	No	Yes	No

As verbs, pick off and pluck are synonyms defined as:

Other synonyms of pick off include pull off, tweak.

pick off (noun)	pluck (noun)
	the act of pulling and releasing a taut cord
	the trait of showing courage and determination in spite of possible loss or injury

pick off (verb)	pluck (verb)
pull or pull out sharply	pull or pull out sharply
shoot one by one	look for and gather
	pull lightly but sharply with a plucking motion
	strip of feathers
	rip off; ask an unreasonable price
	sell something to or obtain something from by energetic and especially underhanded activity