holding vs withholding

holding and withholding both are nouns.

Word	Noun	Adjective	Verb	Adverb
holding	Yes	No	No	No
withholding	Yes	No	No	No

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

holding: the act of retaining something
withholding: the act of holding back or keeping within your possession or control

Other hyponyms of holding include storage.

holding (noun)	withholding (noun)
the act of retaining something	the act of deducting from an employee's salary
something owned; any tangible or intangible possession that is owned by someone	the act of holding back or keeping within your possession or control
	income tax withheld from employees' wages and paid directly to the government by the employer