abbr. 利益冲突（conflict of interest）；（英国）中央新闻署（Central Office of Information）；（生物学）细胞色素c氧化酶亚基I（cytochrome c oxidase subunit I）基因，常用作物种鉴定DNA条形码；（通信）通信操作说明书（Communications Operating Instructions）；利益共同体（Community of Interest）
It could also help the social networking giant to get people to use Facebook messaging more often, instead of sending messages through text and email, as pointed out by software engineer Aaron Cois on Twitter.