black-hole

Inescapable space region

Black-hole as a verb means to consign something to oblivion or make it disappear, as if swallowed by the astronomical phenomenon: The proposal was black-holed by the committee.

In British slang, it can mean to imprison in solitary confinement.

The noun black hole—a region of space with gravity so strong that nothing escapes—is usually written without the hyphen.

astrophysics

singularity

Point where values explode

gravitational lensing · quasar · supermassive · stellar · spaghettification · gravitational waves · merger · pulsar · magnetar

gravity

mass

Quantity of matter

escape velocity · tidal forces · geodesic · time dilation · redshift · gravitational pull · orbiting · capture · distortion · density

void

abyss

Immeasurably profound depth

chasm · maw · bottomless · fathomless · lightless · invisible · unseeable · blank · absence · vacuum

metaphor

money pit

Endlessly expensive undertaking

vortex · quicksand · resource drain · disappearance · vanishing · no return · lost cause

consuming

devouring

Eating greedily and quickly

pulling in · drawing in · feeding · insatiable · voracious · inescapable · sucking · capturing · trapping · annihilating

Opposites
light emission/absorption

black-holequasar

Luminous active galactic core

star · supernova · sun · pulsar · light source

cosmic fate/stellar evolution

black-holeprotostar

Pre-fusion celestial body

stellar nursery · young star · nebula

Family

black, blacken, Black Friday, blackberry, blackness, blacks, blackboard, blackish, blackened

Familiarity
Top 1,000,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G