How to spell INSIDIUS correctly?

If you've mistakenly spelled "insidius", don't fret! The correct spelling is "insidious". Remember the "io" following the "s" and "u". When in doubt, use spell-check or consult a dictionary. Ensuring correct spelling adds credibility and professionalism to your writing.

• insides I could feel the insides of my stomach churning with anxiety as I stepped onto the stage.
• insidious The insidious virus spread throughout the community without warning.
• invidious It is invidious to compare your success with that of your colleague.

Ponnies

• panniers
• pennies
• peonies
• pones
• ponies