How to spell TRIOU correctly?

The misspelling "triou" could be corrected to "trio", a group of three musicians or performers. Alternatively, it could be corrected to "triole", a term in music indicating a group of three notes played in the time of two.

• trio The trio of singers gave an outstanding performance at the music awards.
• trio u
• trios The jazz trio played a beautiful rendition of the classic tune.

Attenttion

• attention
• attentions
• attenuation
• inattention