shock vs appal

shock is a noun but appal is not a noun.

Word	Noun	Adjective	Verb	Adverb
shock	Yes	No	Yes	No
appal	No	No	Yes	No

As verbs, appal is a hypernym of shock; that is, appal is a word with a broader meaning than shock:

Other hypernyms of shock include alarm, appall, dismay, horrify.

As verbs, shock and appal are synonyms defined as:

Other synonyms of shock include appall, offend, outrage, scandalise, scandalize.

shock (noun)	appal (noun)
a reflex response to the passage of electric current through the body
the violent interaction of individuals or groups entering into combat
a mechanical damper; absorbs energy of sudden impulses
an instance of agitation of the earth's crust
an unpleasant or disappointing surprise
a sudden jarring impact
the feeling of distress and disbelief that you have when something bad happens accidentally
a pile of sheaves of grain set on end in a field to dry; stalks of Indian corn set up in a field
a bushy thick mass (especially hair)
(pathology) bodily collapse or near collapse caused by inadequate oxygen delivery to the cells; characterized by reduced cardiac output and rapid heartbeat and circulatory insufficiency and pallor

shock (verb)	appal (verb)
inflict a trauma upon	strike with disgust or revulsion
subject to electrical shocks	fill with apprehension or alarm; cause to be unpleasantly surprised
collect or gather into shocks
collide violently
strike with horror or terror
surprise greatly; knock someone's socks off
strike with disgust or revulsion