List: colloquial

popular  noun  noun (generic)  colloquial 

• Mach (number)
• (at a) fast speed

popular  search-only kana form  abbreviation  noun  noun (generic)  noun or participle taking the aux. verb する  intransitive verb  colloquial 

• email
• mail, post
• message (in an instant messaging application), instant message, IM, (SMS) text

popular  colloquial  noun  noun (generic)  sensitive 

• delinquent (youth), delinquency
• Yankee, Yank, American

popular  な adjective  adjective (generic)  colloquial  abbreviation  Internet  noun  noun (generic) 

• real, realistic, true to life
• serious, non-joking, earnest
• realtime blog
• real world (cf. online games or social networking services)

popular  food, cooking  noun  noun (generic)  colloquial 

• roux
• (Japanese) curry sauce

popular  abbreviation  noun  noun (generic)  colloquial  noun or participle taking the aux. verb する  transitive verb 

• tow truck, wrecker
• towing (a vehicle)

popular  noun  noun (generic)  noun or participle taking the aux. verb する  intransitive verb  noun or verb acting prenominally  adjective (generic)  colloquial 

• rolling (of a ship, etc.)
• rolling (start, plan, etc.)
• illegal street racing

popular  colloquial  abbreviation  noun  noun (generic) 

• location scouting

popular  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb  colloquial  noun (suffix) 

• loss
• feeling of loss

gairaigo  English origin  popular  colloquial  な adjective  adjective (generic)  noun  noun (generic) 

• necessary, indispensable, must-have, required, mandatory