Select the most appropriate word for the given group of words.

A traveller who moves from one region or country to another

migrant

The most appropriate word for a traveler who moves from one region or country to another is migrant.

• Itinerant refers to someone who travels from place to place, but does not have a permanent home. They are often associated with circuses, carnivals, or other traveling shows.
• Vagrant refers to someone who wanders from place to place without any fixed purpose or destination. They are often associated with poverty, homelessness, and crime.
• Migrant refers to someone who moves from one place to another in order to find work or better living conditions. They are often associated with economic migration, but can also be motivated by political, environmental, or social factors.
• Truant refers to a student who deliberately avoids going to school. They are often associated with laziness, lack of motivation, or behavioral problems.

Migrant is the most appropriate word for this group of words because it specifically refers to someone who moves from one region or country to another for a reason. The other words do not have the same connotation of purposeful movement.