ほんの冗談だよ。
Sentence Analyzer
English Translation
        I am only joking.
    
Furigana
        ほんの冗談 だよ。
    
Romanji
        Honno jōdan da yo.
    
Words
            
                本の
            
            
                (ほんの)
            
        
        
            mere; only; just; not even (with negative verb)
        
    
            
                冗談
            
            
                (じょうだん、ぎだん、げだん)
            
        
        
            jest; joke; funny story
        
    
            
                だ
            
            
                (だ)
            
        
        
            be; is; indicates past or completed action; indicates light imperative
        
    
            
                よ
            
            
                (よ)
            
        
        
            indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!