cross (krôs, krŏs)

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[Middle English cros, from Old English, probably from Old Norse kross, from Old Irish cros, from Latin crux.]

noun 

1. 1. An upright post with a transverse piece near the top, on which condemned persons were executed in ancient times.
   2. often Cross. The upright post with a transverse piece upon which Jesus was crucified.
   3. A crucifix.
   4. Any of various modifications of the cross design, such as a Latin cross or Maltese cross.
   5. A medal, emblem, or insignia in the form of a cross.
2. The Christian religion; Christianity.
3. In Christianity, a sign made by tracing the outline of a cross with the right hand upon the forehead and chest as a devotional act.
4. A trial, affliction, or frustration. See synonyms at burden¹
5. A mark or pattern formed by the intersection of two lines, especially such a mark (X) used as a signature.
6. A movement from one place to another, as on a stage; a crossing.
7. A pipe fitting with four branches in upright and transverse form, used as a junction for intersecting pipes.
8. Biology
   1. A plant or animal produced by crossbreeding; a hybrid.
   2. The process of crossbreeding; hybridization.
9. One that combines the qualities of two other things: a novel that is a cross between romance and satire.
10. Sports A hook thrown over an opponent's punch in boxing.
11. Law An act or instance of cross-examining; a cross-examination.
12. The Southern Cross.
13. Slang A contest whose outcome has been dishonestly prearranged.

verb: crossed, cross·ing, cross·es. 

transitive verb 

1. To go or extend across; pass from one side of to the other: crossed the room to greet us; a bridge that crosses the bay.
2. To carry or conduct across something: crossed the horses at the ford.
3. To extend or pass through or over; intersect: Elm Street crosses Oak Street.
4. 1. To delete or eliminate by or as if by drawing a line through: crossed tasks off her list as she did them.
   2. To make or put a line across: Cross your t's.
5. To place crosswise one over the other: cross one's legs.
6. To make the sign of the cross upon or over as a sign of devotion.
7. To encounter in passing: His path crossed mine.
8. To combine the qualities of two things: a movie that crosses horror with humor.
9. Informal To interfere with; thwart or obstruct: Don't cross me.
10. To betray or deceive; double-cross. Often used with up.
11. Biology To crossbreed or cross-fertilize (plants or animals).

intransitive verb 

1. To lie or pass across each other; intersect.
2. 1. To move or extend from one side to another: crossed through Canada en route to Alaska.
   2. To make a crossing: crossed into Germany from Switzerland.
3. To meet in passing; come into conjunction: Their paths crossed at the health club.
4. To move or be conveyed in opposite directions at the same time: Our letters must have crossed in the mail.
5. Biology To crossbreed or cross-fertilize.

adjective 

1. Lying or passing crosswise; intersecting: a cross street.
2. Contrary or counter; opposing.
3. Showing ill humor; annoyed.
4. Involving interchange; reciprocal.
5. Crossbred; hybrid.

adverb 

Crosswise.

prep. 

Across.

phrasal verbs

cross over

To change from one condition or loyalty to another.

Genetics To exchange genetic material. Used of homologous chromosomes.

cross up

To ruin completely: Their lack of cooperation crossed up the whole project.

idioms

cross (one's) mind

To come to know; realize: It crossed my mind that you might want to leave early.

cross (someone's) palm

To pay, tip, or bribe.

cross swords

To quarrel or fight.

derivatives

crosśer

noun

crosśly

adverb

crosśness

noun