Common words that rhyme with modern include concern, discern, govern, mourn, barleycorn, darn, stubborn, return, upturn, bourn, suborn, thorn, worn, yarn and sworn.
His health is a concern.
The teacher gave him a stern reprimand.
The pattern remains consistent throughout.
Would you please turn off the lights?
The stubborn cat refused to move.
You can return it on approval.