cross swords
(mathematics) The whole numbers from 0 to 9 and the Arabic numerals representing them, which are combined to represent base-ten numbers.
(archaic) third-person singular simple present indicative form of truss
Mentally supplied.
Used other than figuratively or idiomatically: see cross, sword., to place or hold two swords so they cross each other. / To fight with someone; to duel.
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