Ranked choice voting
A vote variation: which allows each voter to rank contest options in order of the voter’s preference, in which votes are counted in rounds using a series of runoff tabulations to defeat contest options with the fewest votes, and, which elects a winner with a majority of final round votes in a single-winner contest and provides proportional representation in multi-winner contests.
Source: Election Terminology Glossary - Draft, National Institute of Standards and Technology (NIST), https://pages.nist.gov/ElectionGlossary/