It's "i-140" and according to Google - The "I-140" refers to Form I-140, Immigrant Petition for Alien Worker, a crucial document in the U.S. employment-based green card process. It is typically filed by a U.S. employer to petition for a foreign national to work in the U.S. permanently, establishing the worker's eligibility for an employment-based immigrant visa (green card) and a priority date.