strike vs figure out

strike is a noun but figure out is not a noun.

Word	Noun	Adjective	Verb	Adverb
strike	Yes	No	Yes	No
figure out	No	No	Yes	No

As verbs, figure out is a hypernym of strike; that is, figure out is a word with a broader meaning than strike:

strike: arrive at after reckoning, deliberating, and weighing
figure out: find the solution to (a problem or question) or understand the meaning of

Other hypernyms of strike include lick, puzzle out, solve, work, work out.

strike (noun)	figure out (noun)
a group's refusal to work in protest against low pay or bad work conditions
a score in tenpins: knocking down all ten with the first ball
an attack that is intended to seize or inflict damage on or destroy an objective
a conspicuous success
(baseball) a pitch that the batter swings at and misses, or that the batter hits into foul territory, or that the batter does not swing at but the umpire judges to be in the area over home plate and between the batter's knees and shoulders
a gentle blow

strike (verb)	figure out (verb)
cause to form (an electric arc) between electrodes of an arc lamp	find the solution to (a problem or question) or understand the meaning of
arrive at after reckoning, deliberating, and weighing
indicate (a certain time) by striking
make a strategic, offensive, assault against an enemy, opponent, or a target
deliver a sharp blow, as with the hand, fist, or weapon
hit against; come into sudden contact with
affect or afflict suddenly, usually adversely
produce by manipulating keys or strings of musical instruments
remove by erasing or crossing out or as if by drawing a line
pierce with force
smooth with a strickle
hook by a pull on the line
produce by ignition or a blow
form by stamping, punching, or printing
disassemble a temporary structure, such as a tent or a theatrical set
have an emotional or cognitive impact upon
drive something violently into a location
occupy or take on
cause to experience suddenly
find unexpectedly
stop work in order to press demands
attain
touch or seem as if touching visually or audibly