push vs crusade

push and crusade both are nouns.

Word	Noun	Adjective	Verb	Adverb
push	Yes	No	Yes	No
crusade	Yes	No	Yes	No

As verbs, crusade is a hyponym of push; that is, crusade is a word with a more specific, narrower meaning than push:

push: make publicity for; try to sell (a product)
crusade: exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for

Other hyponyms of push include propagandise, propagandize, plug, bill, agitate, campaign, fight, press, push.

As verbs, push and crusade are synonyms defined as:

push and crusade: exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for

Other synonyms of push include agitate, campaign, fight, press.

push (noun)	crusade (noun)
the act of applying force in order to move something away	a series of actions advancing a principle or tending toward a particular end
an effort to advance
an electrical switch operated by pressing
enterprising or ambitious drive
the force used in pushing

push (verb)	crusade (verb)
make publicity for; try to sell (a product)	go on a crusade; fight a holy war
press, drive, or impel (someone) to action or completion of an action	exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for
make strenuous pushing movements during birth to expel the baby
move with force
approach a certain age or speed
press against forcefully without moving
move strenuously and with effort
sell or promote the sale of (illegal goods such as drugs)
strive and make an effort to reach a goal
exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for