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"stop" is also used as a crossword clue. If that's what you saw, the answer is often halt (4 letters).
Definitions
Cease moving or doing something
Word origin
From Middle English stoppen, stoppien, from Old English stoppian (“to stop, close”), from Proto-West Germanic *stoppōn, from Proto-Germanic *stuppōną (“to stop, close”), *stuppijaną (“to push, pierce, prick”), from Proto-Indo-European *(s)tewp-, *(s)tewb- (“to push; stick”), from *(s)tew- (“to bump; impact; butt; push; beat; strike; hit”).
Used in a sentence
“I stopped at the traffic lights.”
“The riots stopped when police moved in.”
“Soon the rain will stop.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer6 curated clues
01“Cease moving”4 letters
02“Halt”4 letters
03“Red octagon command”4 letters
04“Red sign command”4 letters
05“Traffic sign command”4 letters
06“Come to a halt”4 letters
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