(idiomatic) To make a lot of effort with all one's resources.

The deeper part of the sea or ocean in which no light penetrates / (sport fishing) open sea (part of the sea out of sight of land)

Of, related to or located in the deeper part of the sea. / (sport fishing) Of or related to open sea. / (of a port) Able to accommodate the largest ships.

simple past tense and past participle of deeky

Third-person singular simple present indicative form of deeky

(Tyneside) A quick look.

Of or in the area of space beyond the gravitational influence of Earth, or outside the Solar System

All of space beyond the gravitational influence of Earth, or outside the Solar System, or distant from stars

present participle of deep-six

Alternative form of deep six