The Japanese noun '利益 (りえき)' can mean either 'profit' or 'benefit', depending on the context. When referring to 'profit', it is often used in business or financial contexts to describe monetary gain. For example: The company made a large profit「その会社は大きな利益を得た」(そのかいしゃはおおきなりえきをえた). When referring to 'benefit', it is used to describe an advantage or positive outcome, often in a more general or non-monetary sense. For example: This policy will bring benefits to society「この政策は社会に利益をもたらす」(このせいさくはしゃかいにりえきをもたらす). The word can be used in both formal and informal settings, but it is more commonly encountered in formal or written contexts.