Appearing as though dead, or on the verge of death. / Deadly, fatal, causing death. / Extreme.

In a way that resembles death. / Extremely, dreadfully.

plural of death knell

The tolling of a bell announcing death. / (idiomatic, by extension) A sign or omen foretelling the death or destruction of something.

(poker) A pair of aces and a pair of eights (especially, the black aces and eights), in a player's hand. / (poker) An ace and an eight as a starting hand in Texas hold 'em

A woodboring beetle, namely a beetle whose larvae are xylophagous.

Alternative spelling of deafblindness

(slang) A corpse / (slang, idiomatic) Someone in danger of being killed or severely punished.

(simile) Unquestionably dead. Used for both inanimate objects and once living beings.

A human skull, as symbol of death. / A kind of hawk moth with pale markings on the back of the thorax somewhat like a skull.