Current Affairs

Quisling 

• [noun] 
• MEANING: 
• a person who collaborates with the invading enemy and thus betrays his or her own country

Incursion 

• [noun] 
• MEANING: 
• an invasion, inroad, intrusion or raid

Mirth

• [noun] 
• MEANING:
• gaiety, happiness or amusement

Incontrovertible

• [adjective] 
• MEANING: 

• indisputable, indubitable or authentic

Inundate 

• [transitive verb] 
• MEANING: 
• deluge or to flood
• to overwhelm or engulf especially with work