all fours

English edit

The four legs of a quadruped.
The four limbs of a primate.
to be on all fours
(card games) A card game similar to whist.
- 1874, Thomas Hardy, Far from the Madding Crowd:
  'Twas a bad leg allowed me to read the Pilgrim's Progress, and Mark Clark learnt All-Fours in a whitlow.
- 1882, John Ashton, Social Life in the Reign of Queen Anne, page 104:
  Other games were cribbage, all fours, ruff and honours, French ruff, five cards, costly colours, bon ace, putt, plain dealing, Queen Nazareen, pennech, post and pair, bankafalat, beast.
A certain game of dominos.

four legs of a quadruped

four limbs of a primate

card game