All` fours" [formerly, All` four".]

All four legs of a quadruped; or the two legs and two arms of a person.

To be, go, or run, on all fours (Fig.), to be on the same footing; to correspond (with) exactly; to be alike in all the circumstances to be considered. "This example is on all fours with the other." "No simile can go on all fours." Macaulay.

 

© Webster 1913.

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