dismiss vs send packing

dismiss and send packing both are verbs.

Word	Noun	Adjective	Verb	Adverb
dismiss	No	No	Yes	No
send packing	No	No	Yes	No

As verbs, send packing is a hyponym of dismiss; that is, send packing is a word with a more specific, narrower meaning than dismiss:

Other hyponyms of dismiss include retire, pension off, clean out, furlough, lay off, squeeze out, dismiss, drop, send away.

As verbs, dismiss and send packing are synonyms defined as:

Other synonyms of dismiss include drop, send away.

dismiss (verb)	send packing (verb)
declare void	stop associating with
bar from attention or consideration
end one's encounter with somebody by causing or permitting the person to leave
cease to consider; put out of judicial consideration
terminate the employment of; discharge from an office or position
stop associating with