• bisy,
• abiliy,
• bilgi,
• billd,
• billl,
• biuld,
• biill,
• biblo,
• rilly,
• billi,
• bailley,
• balll,
• bilve,
• builty,
• billio,
• bille,
• blry,
• bicle,
• baily,
• beill

• bile,
• bill,
• Billie,
• billy-ho,
• burly,
• ball,
• bell,
• biel,
• bills,
• biehl,
• Billa,
• belly,
• billyoh,
• boll,
• billow,
• Bilyeu,
• bully,
• biello,
• silly,
• filly,
• bialy,
• Biele,
• Billi,
• bull,
• billowy,
• billyo,
• Billye.

The plural of the "billy" can be the "Billies".

The singular of the "billy" can be the "billy".