The difference between Fang and Grasp

Fang as a noun:

a long, pointed canine tooth used for biting and tearing flesh

Fang as a noun:

a long pointed tooth for injecting venom

Fang as a verb (rare):

To strike or attack with the fangs.

Fang as a verb:

To enable to catch or tear; to furnish with fangs.

Fang as a verb (transitive, dialectal, or, archaic):

To catch, capture; seize; grip; clutch; lay hold of.

Fang as a verb (transitive, dialectal, or, obsolete):

To take; receive with assent; accept.

Fang as a verb (transitive, obsolete, as a guest):

To receive with hospitality; welcome.

Fang as a verb (transitive, obsolete, a thing given or imposed):

To receive.

Fang as a verb (transitive, dialectal):

To receive or adopt into spiritual relation, as in baptism; be godfather or godmother to.

Fang as a noun (now, chiefly, dialectal, Scotland):

A grasping; capture; the act or power of seizing; hold.

Fang as a noun:

That which is seized or carried off; booty; spoils; stolen goods.

Fang as a noun:

Any projection, catch, shoot, or other thing by which hold is taken; a prehensile part or organ.

Fang as a noun (mining):

A channel cut in the rock, or a pipe of wood, used for conveying air.

Fang as a noun (rare, in the plural):

Cage-shuts.

Fang as a noun (nautical):

The coil or bend of a rope; a noose; a trap.

Fang as a noun (nautical):

The valve of a pump box.

Fang as a verb (Scotland, transitive):

To supply (a pump) with the water necessary for it to operate.

Grasp as a verb:

To grip; to take hold, particularly with the hand.

Grasp as a verb:

To understand.

Grasp as a verb:

To take advantage of something, to seize, to jump at a chance.

Grasp as a noun (sometimes, figurative):

Grip.

Grasp as a noun:

Understanding.

Grasp as a noun:

That which is accessible; that which is within one's reach or ability.