The two columns of words below are related in a certain way. It has nothing to do with matching words between columns. Can you determine what the relationship is?

AIR              TRUE

ORE             HONE

UTTER        BUR

ITCH           CLOSE

RANGE       AGAIN 

Answer:

 

The words in the left-hand column can all be preceded by ST. The words in the right-hand column can all be followed by ST:

 

STAIR              TRUEST

STORE             HONEST

STUTTER        BURST

STITCH           CLOSEST

STRANGE       AGAINST