grasp vs twig

grasp and twig both are nouns.

Word	Noun	Adjective	Verb	Adverb
grasp	Yes	No	Yes	No
twig	Yes	No	Yes	No

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

Other hyponyms of grasp include figure, catch on, cotton on, get it, get onto, get wise, latch on, tumble, intuit, digest.

grasp (noun)	twig (noun)
the act of grasping	a small branch or division of a branch (especially a terminal division); usually applied to branches of the current or preceding year
an intellectual hold or understanding
understanding of the nature or meaning or quality or magnitude of something
the limit of capability

grasp (verb)	twig (verb)
get the meaning of something	branch out in a twiglike manner
hold firmly	understand, usually after some initial difficulty