crisscross

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To mark with crossing lines.
• intransitive verb To move back and forth through or over.
• intransitive verb To move back and forth.
• noun A mark or pattern made of crossing lines.
• noun A state of being at conflicting or contrary purposes.
• adjective Crossing one another or marked by crossings.
• adverb In a manner or direction that crosses or is marked by crossings.

from The Century Dictionary.

• To form a crisscross; intersect frequently.
• noun Same as christ-cross.
• noun A crossing or intersection; a congeries of intersecting lines.
• noun A game played on a slate, or on paper, by children, in which two players set down alternately, in a series of squares, the one a cross, the other a cipher. The object of the game is to get three of the same characters in a row. Also called tit-tat-to.
• Like a cross or a series of crosses; crossed and recrossed; going back and forth.

from the GNU version of the Collaborative International Dictionary of English.

• noun A mark or cross, as the signature of a person who is unable to write.
• noun A child's game played on paper or on a slate, consisting of lines arranged in the form of a cross.
• transitive verb To mark or cover with cross lines.
• adverb In opposite directions; in a way to cross something else; crossing one another at various angles and in various ways.
• adverb With opposition or hindrance; at cross purposes; contrarily.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb To move back and forth (over something.)
• verb To mark something with crossed lines.
• noun A pattern of crossed lines.
• adjective marked with crossed lines
• adverb crossing one another

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb cross in a pattern, often random
• noun a marking that consists of lines that cross each other
• verb mark with or consist of a pattern of crossed lines
• verb mark with a pattern of crossing lines
• adverb crossing one another in opposite directions
• adjective marked with crossing lines