Fun, /fʌn/ (adj): enjoyment, amusement, or light-hearted pleasure. amusing, entertaining, or enjoyable, behaviour or an activity that is intended purely for amusement and should not be interpreted as having any serious or malicious purpose.
Con, /kɒn/ (noun):
scam, persuade (someone) to do or believe something by lying to them, an instance of deceiving or tricking someone; a convention, especially one for enthusiasts of science fiction and fantasy literature and films.
1, /wʌn/, (number): the first, the best, the start of a sequence/series the lowest cardinal number; half of two; 1 time to start drinking.