Visits = Sessions

Unique Visits = Users

Pageviews is still Pageviews

Sessions

Total number of Sessions within the date range. A session is the period time a user is actively engaged with your website, app, etc. All usage data (Screen Views, Events, Ecommerce, etc.) is associated with a session. – Google Analytics

Users

Users that have had at least one session within the selected date range. Includes both new and returning users. – Google Analytics

Pageviews

Pageviews is the total number of pages viewed. Repeated views of a single page are counted. – Google Analytics