fluctuation vs deviation

deviation vs fluctuation

fluctuation and deviation both are nouns.

Word	Noun	Adjective	Verb	Adverb
fluctuation	Yes	No	No	No
deviation	Yes	No	No	No

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

fluctuation: an instance of change; the rate or magnitude of change
deviation: a variation that deviates from the standard or norm

Other hyponyms of fluctuation include vicissitude, allomerism, departure, difference, divergence, permutation, replacement, substitution, switch, transposition, business cycle, trade cycle, daily variation, diurnal variation, tide.

fluctuation (noun)	deviation (noun)
the quality of being unsteady and subject to changes	deviate behavior
an instance of change; the rate or magnitude of change	a turning aside (of your course or attention or concern)
a wave motion	the error of a compass due to local magnetic disturbances
	the difference between an observed value and the expected value of a variable or function
	a variation that deviates from the standard or norm

Difference between fluctuation and deviation

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