(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.

(linguistics) A voice stop in the formation of which air behind the articulation is rarefied with consequent inrush of air when articulation is broken.

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

(intransitive) To interrupt one's journey for a short (sometimes overnight) stay; to stop off.

Alternative spelling of stopover

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

A sign by the side of a road or street, often at an intersection, instructing vehicle drivers to stop.

(baseball) Alternative spelling of shortstop

(idiomatic) To terminate or abolish something.

(chiefly British spelling) Alternative form of stopgap