(pathology) The sudden and unexplained death of an infant aged one month to one year, normally while sleeping.

(dated, nautical) The period of work on board ship for which the seamen have been paid in advance (usually a month's wages), the end of this term being celebrated by parading a straw horse about the decks.

(obsolete, rare) Subject to death; mortal. / Causing death; lethal. / Aiming or willing to destroy; implacable; desperately hostile. / Very accurate (of aiming with a bow, firearm, etc.).

(obsolete) Fatally, mortally. / In a way which suggests death. / Extremely, incredibly.

(derogatory) A lazy and/or irresponsible person who is often unemployed, often depending upon wealthy or otherwise financially independent people for support. / A person who defaults on debts.

(of an instrument) having a damped needle that stops without oscillation / defaulting on one's debts / defeated or exhausted / (derogatory) lazy or irresponsible / dead tired

(baseball) A four-seam fastball

(baseball) For a batter to look for a four-seam fastball.

In a dear or precious manner. / In a dear or expensive manner. / At great expense.

(set phrase, of a contest) That will continue until one of the contestants dies. / (idiomatic) To the utmost degree.