CV is an acronym for "Curriculum Vitae," which means the course of life. The meaning and uses of a CV and resume are different based on the country. A CV in all Europe, as well as New Zealand, is equivalent to a resume in the US.
A resume is a brief, short, and document created for the purpose of a Job, and a CV is an in-depth documentation of your life achievement, experience, and personal information. The resume must be short and must be in sync with the job specification you are applying for, while CV gives in-depth information of all your academic experience. Resumes are mostly used for a job application; they are often bulleted to keep the information precise. A CV has no length limit.