noun

1. an upright post with a bar across it near the top, to which the ancient Romans fastened convicted persons to die
2. a representation or figure of a cross, used as a badge, decoration, etc.; also, such a badge, decoration, etc. the Distinguished Service Cross
3. a monument in the form of a cross, or with a cross on it, marking a crossroad, boundary, grave, etc.
4. a staff with a cross at the top, carried before an archbishop as a sign of his authority
5. 1. a representation of a cross, in any of various recognized forms, as a symbol of the crucifixion of Jesus, hence of the Christian religion
   2. a crucifix
6. 1. the act of crossing, as from one side of a stage to the other
   2. the act of crossing oneself
7. any trouble or affliction that one has to bear; also, anything that thwarts or frustrates
8. any design, mark, or object made by two lines or surfaces that intersect one another
9. such a mark () made as a signature, as by a person who cannot write
10. 1. a crossing, or mixing, of varieties or breeds; hybridization
    2. the result of such mixing; hybrid
11. something that combines the qualities of two different things or types
12. Slang a dishonest action, fixed contest or match, etc.
13. Boxing a blow delivered over and across the opponent's lead
14. Northern Cross
15. Southern Cross

Etymology: < ME cros & crois; cros < OE cros & ON kross, both < OIr cros < L crux (gen. crucis), a cross < IE *kreuk-, extension of base *(s)ker-, to turn, bend > L curvus; ME crois < OFr < L crux

transitive verb

1. to make the sign of the cross over or upon
2. to place across or crosswise cross your fingers
3. to lie or cut across; intersect where two streets cross one another
4. to draw or put a line or lines across cross your t's
5. to pass over; go from one side to the other of; go across to cross the ocean
6. to carry or lead across
7. to extend or reach across the bridge crosses a river
8. to meet and pass (each other)
9. to bring into contact, causing electrical interference the wires were crossed
10. to go counter to; thwart; oppose
11. to interbreed (animals or plants); breed (an individual of one type) with one of another; hybridize; cross-fertilize

intransitive verb

1. to lie across; intersect
2. to go or extend from one side to the other: often with over
3. to pass each other while moving in opposite directions
4. to interbreed; hybridize; cross-fertilize

adjective

1. lying or passing across or through; transverse; crossing or crossed cross street, cross ventilation
2. going counter; contrary; opposed at cross purposes
3. irritated or irritable; ill-tempered
4. involving reciprocal actions, etc.
5. of mixed variety or breed; hybrid; crossbred
6. Archaic causing harm; unfavorable

adverb