1. (

• harness ,
• tackle ,

) put a harness; "harness the horse" ;

2. (

• harness

) exploit the power of; "harness natural forces and resources" ;

3. (

• harness ,
• rein_in ,
• draw_rein ,
• rein

) control and direct with or as if by reins; "rein a horse" ;

4. (

• rule ,
• harness ,
• rein

) keep in check; "rule one's temper" ;