Webster's English Dictionary

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across

1. across \*-'kro.s\ av [ME acros, fr. AF an crois, fr. an in (fr. L in) + 
   c]rois cross, fr. L crux - more at IN, CROSS 1: in a position reaching from 
   one side to the other : CROSSWISE  2: to or on the opposite side  3: so as 
   to be understandable, acceptable, or successful : OVER 
2. across pp 1: to or on the opposite side of  2: so as to intersect or 
   pass at an angle  3: into an accidental or transitory meeting or contact 
   with {ran ~  an old friend}
3. across aj : CROSSED