(idiomatic) An exclamation used to introduce especially new, important, surprising, or recent developments.

(biology, genetics, biochemistry) a sequence of three RNA nucleotides (A, C, G or U) that instruct the synthesis, or translation, of a protein to stop. The three-letter stop codon sequences have been given names: "UAG" is amber, "UGA" is opal, and "UAA" is ochre.

Any of many knobs near the keyboard of an organ used to select different sounds or timbres. / The timbre so produced.

(UK) Used to announce an event or news article important enough to delay or interrupt the print, or require a reprint, of publication, particularly of a newspaper edition.

A place where public transport buses stop to allow passengers to board or leave.

(motor racing) A stop made during an automobile race at the pit to refuel and perform other periodic maintenance on the vehicle.

(Australia, Britain, India, Ireland, New Zealand, South Africa) The punctuation mark “.” (indicating the end of a sentence or marking an abbreviation). / (figuratively) A decisive end to something.

(phonetics) A plosive sound articulated with the glottis. / The glottal stop symbol, ʔ.

a designated point on a tram route where passengers may board or leave the tram

The ability of a weapon (typically a firearm or other ranged weapon) to rapidly incapacitate or immobilize a target.