override override /ˈoʊvɝˌraɪd/

noun

1. The act of nullifying; making null and void; counteracting or overriding the effect or force of something  ( nullification , override )
   the act of nullifying; making null and void; counteracting or overriding the effect or force of something
   
2. A manually operated device to correct the operation of an automatic device  ( override )
   a manually operated device to correct the operation of an automatic device
    When the automatic system failed, the engineer had to use the override to regain control.
   When the automatic system failed, the engineer had to use the override to regain control.
   
   

verb

1. () Rule against  ( overrule , overthrow , overturn , override , reverse )
   rule against
    The Republicans were overruled when the House voted on the bill
   The Republicans were overruled when the House voted on the bill
   
2. (riding) ride (a horse) too hard  ( override )
   (riding) ride (a horse) too hard
   
3. Counteract the normal operation of (an automatic gear shift in a vehicle)  ( override )
   counteract the normal operation of (an automatic gear shift in a vehicle)
   
4. Prevail over  ( override )
   prevail over
    Health considerations override financial concerns
   health considerations override financial concerns
   

 conventicle conventicle /kənˈvɛntɪkl/

noun

1. A building for religious assembly (especially Nonconformists, e.g., Quakers)  ( conventicle , meetinghouse )
   a building for religious assembly (especially Nonconformists, e.g., Quakers)
   
   
2. A secret unauthorized meeting for religious worship  ( conventicle )
   a secret unauthorized meeting for religious worship
    The group held a conventicle in secret to discuss their beliefs.
   The group held a conventicle in secret to discuss their beliefs.
   
   

 mass hysteria mass hysteria /mæs hɪˈstɪəriə/

noun

1. A condition in which a large group of people exhibit the same state of violent mental agitation  ( epidemic hysertia , mass hysteria )
   a condition in which a large group of people exhibit the same state of violent mental agitation
   
   

 tribunal tribunal /trəˈbjuːnəl/

noun

1. () An assembly (including one or more judges) to conduct judicial business  ( judicature , tribunal , court )
   an assembly (including one or more judges) to conduct judicial business
     The judge presided over the court proceedings.
   The judge presided over the court proceedings.