pointed, sharpness, edge, weapon, sharp, violent
鋭 centers on a fine, penetrating quality: a sharp edge or point, whether literal (a blade, a weapon) or figurative (keenness, intensity). The violent sense is an extreme application of that sharp, piercing force.
鋭 combines 金 (metal) with 兑, which likely contributes the sound and carries a sense of sharpness or pointedness. The character originally referred to a sharp metal point or blade.
Metal (金) on the left, and the right side 兑 looks like a pointed tool with a sharp edge. Imagine a finely honed metal blade that can pierce anything.
For エイ, picture the sharp edge of an 'A'-shaped metal spear: the letter 'A' sounds like エイ, and its pointed tip represents the kanji's sharpness.
sharp (knife, claws, etc.); pointed
elite; best; pick; cream of the crop
young and energetic; up-and-coming; new and excellent; newly produced; up-and-comer
sharp; keen; acute
radical; acute; sharp
spirited; energetic
acute angle
sharp (eyes, ears, etc.); keen; acute; sensitive
eagerly; earnestly; zealously; wholeheartedly; diligently; assiduously
radicalization; radicalisation; becoming a radical
young and energetic; up-and-coming
elect (select) few
being young and spirited; being young and full of go
young and energetic; up-and-coming
state-of-the-art; cutting-edge
sensitive; thin-skinned
sensitive; thin-skinned
elite force; elite troops
elite unit; elite troop
sharp (tongue, criticism, etc.); cutting; scathing