1. (

• override

) a manually operated device to correct the operation of an automatic device ;

2. (

• nullification ,
• override

) the act of nullifying; making null and void; counteracting or overriding the effect or force of something ;

1. (

• overrule ,
• overturn ,
• override ,
• overthrow ,
• reverse

) rule against; "The Republicans were overruled when the House voted on the bill" ;

2. (

• override ,

) prevail over; "health considerations override financial concerns" ;

3. (

• override

) counteract the normal operation of (an automatic gear shift in a vehicle) ;

4. (

• override ,

) ride (a horse) too hard ;