1. to assemble; to put together; to set up; to construct; to build; to compose (a story, poem, etc.)
あとは組み立てるだけですね。All that's left is to assemble it.
2. to form (words, sentences, etc.)
しかし、意味のある言葉を組み立てることはできなかった。However, I was unable to form meaningful words.