To carry, guide, or convey someone or something from one side (of a thing or place) to another. A noun or pronoun can be used between "take" and "across." He was arrested for taking drugs across the border. There is a ferry that will take you across, but it's pretty slow.
take someone or something across (something)
to carry or lead someone or something across something. Tim took Liz across the bridge. We took a lot of food and medicine across before the flooded river washed the bridge out.