to plan or scheme (often implying a plotted or intended action, sometimes secretive); to form a plan or design.
彼は会社の買収を目論んでいる。
He is scheming to acquire the company.
新商品の発売で市場シェア拡大を目論んでいる。
They plan to expand market share with the launch of the new product.
そんなに簡単に成功を目論むのは甘い考えだ。
It's naive to think you can plan for success that easily.