strength vs intensity

strength and intensity both are nouns.

Word	Noun	Adjective	Verb	Adverb
strength	Yes	No	No	No
intensity	Yes	No	No	No

As nouns, strength and intensity are synonyms defined as:

strength and intensity: the amount of energy transmitted (as by acoustic or electromagnetic radiation)

Other synonyms of strength include intensity level.

As nouns, intensity is a hypernym of strength; that is, intensity is a word with a broader meaning than strength:

Other hypernyms of strength include intensiveness.

strength (noun)	intensity (noun)
the property of being physically or mentally strong	high level or degree; the property of being intense
an asset of special worth or utility	chromatic purity: freedom from dilution with white and hence vivid in hue
permanence by virtue of the power to resist stress or force	the magnitude of sound (usually in a specified direction)
the amount of energy transmitted (as by acoustic or electromagnetic radiation)	the amount of energy transmitted (as by acoustic or electromagnetic radiation)
capability in terms of personnel and materiel that affect the capacity to fight a war
physical energy or intensity
capacity to produce strong physiological or chemical effects
the power to induce the taking of a course of action or the embracing of a point of view by means of argument or entreaty
the condition of financial success