• ree,
• refin,
• ruf,
• hef,
• giref,
• relif,
• req,
• refur,
• rleif,
• breff,
• rey,
• refun,
• href,
• breif,
• lef,
• erea,
• reff,
• nefu,
• meof,
• rec

• rep,
• reap,
• reef,
• reify,
• repp,
• Reva,
• reeb,
• repay,
• reb,
• reave,
• Reif,
• REEP,
• reefy,
• reiff,
• revue,
• Reba,
• reeve,
• rev.

The adjective form of the word "ref" is "refereeing".

The plural of the "ref" can be the "refs".

The singular of the "ref" can be the "ref".