In a precarious position, with one's recourses nearly exhausted. / In a state of excitement due to taking risks. / (with of) With figurative or temporal proximity to (an event, state of mind, etc.).

present participle of edge

Anything that forms, defines, or marks the edge of something. / (rock climbing) A technique involving the placement of the edge of the climbing shoe on a sharp hold.

plural of edging

(chemistry) Initialism of electron-donating group.

plural of EDG

(cartography, printing) The situation produced when the image extends beyond the nominal margin.

An island of Svalbard.

(of paper) Having a deckle edge. / (figuratively) Rough-edged like uncut paper.

The sharp edge of the blade of a knife or other cutting tool. / (idiomatic, by extension, often with "on the") The forefront, or position of greatest advancement in some field.