1. To bring something with one on a trip or to a location. A noun or pronoun can be used between "take" and "along." We'll be gone overnight, so make sure you take along a change of clothes for tomorrow. We had to wait in the lobby for a couple hours, so I'm glad I decided to take my book along.
2. To take another person to a particular location or gathering. A noun or pronoun can be used between "take" and "along." Feel free to take your sister along tonight—we'd all love to see her. Can I take along my boyfriend? He's very interested in the lecture topic.
take someone or something along
to bring someone or something along with one. Can I take my friend along on the hike? You should take along your own drinking water.
To bring someone or something into one's care or keeping while going somewhere: If we go to the movies, you may take along your friends. I took some books along on my bus trip.