spanking vs alert

spanking and alert both are nouns.

Word	Noun	Adjective	Verb	Adverb
spanking	Yes	Yes	No	No
alert	Yes	Yes	Yes	No

As adjectives, spanking and alert are synonyms defined as:

Other synonyms of spanking include brisk, lively, merry, rattling, snappy, zippy.

spanking (noun)	alert (noun)
the act of slapping on the buttocks	a warning serves to make you more alert to danger
	an automatic signal (usually a sound) warning of danger
	condition of heightened watchfulness or preparation for action

spanking (adjective)	alert (adjective)
quick and energetic	engaged in or accustomed to close observation
	mentally perceptive and responsive
	quick and energetic

spanking (verb)	alert (verb)
	warn or arouse to a sense of danger or call to a state of preparedness