across >> /əˈkrɔs/
Definition: [preposition] From one side to the other of (a place, area, etc.)
Example: I ran across the street
Definition: [preposition] Expressing position or orientation in relation to (an area or passage)
Example: they lived across the street from one another
Definition: [adverb] From one side to the other of a place, area, etc.
Definition: [adverb] Used to express position or orientation.
Example: he looked across at me
Definition: [adverb] Referring to a crossword answer which reads horizontally.