also: エッヂ
noun
Common loanword used for physical edges (blades, objects) and abstract edges (competitive advantage, sharpness of design).
このナイフはエッジが鋭い。
This knife has a sharp edge.
彼のデザインには独特のエッジがある。
His designs have a distinctive edge.
Specifically refers to the cutting edge of a blade, whereas エッジ can be used more broadly.
Borrowed from English 'edge'.