There are 12 words that start with 'slang'.
| slang | slangs | slangy | 
| slanged | slangier | slangily | 
| slanging | slangiest | slanguage | 
| slanginess | slanguages | slanginesses | 
Note: These 12 words that start with 'slang' are found from the USA & Canada version of the tournament Scrabble word list.