• cirilla,
• prilla,
• sapidilla,
• sapolilla,
• serilla,
• apirilla,
• zpirilla,
• xpirilla,
• dpirilla,
• epirilla,
• wpirilla,
• soirilla,
• spiurilla,
• spirila,
• spriilla,
• spirlila,
• spirillaa,
• spyrilla,
• spiriodela,
• spirdela

• spirulidae,
• spirally,
• Spruell,
• spiral,
• spirula,
• sporulate,
• sprawly,
• sparling,
• sproles,
• sparely,
• spirillum,
• sporulation,
• sproul,
• sproull,
• Spurling,
• spurlin,
• sprowl,
• sprawl,
• Spurlock,
• Spruill,
• Sperling.

The adjective form of the word "spirilla" is "spirillary".