• jillis,
• bilds,
• billd,
• billl,
• biill,
• billi,
• ciels,
• bilve,
• billio,
• bille,
• billons,
• bailas,
• fillls,
• bolis,
• billm,
• tials,
• billto,
• bils,
• bolws,
• cills

• bilious,
• biloxi,
• tills,
• kills,
• bilk,
• billick,
• billows,
• fills,
• Bialas,
• Boils,
• biles,
• bowls,
• bliss,
• bilgy,
• bill,
• bilge,
• mills,
• Wills,
• bilski,
• bielski,
• BAILS,
• biology,
• bialek.

The adjective form of the word "bills" is "billowy"