noun
tenor
TEN-er/ˈtenər/
A high adult male singing voice or a singer with that voice.
The tenor sings the solo while the choir listens quietly.

Etymology
Latin tenor meant a “holding on” or continuance. In medieval choral music, the tenor part carried the sustained melody; its name then extended to the voice assigned to sing that part.
In context
the tenor register is a very unnatural register it's very high for a for a male voice
More examples
- His clear tenor fills the concert hall.
- The choir needs two more tenors for the spring concert.
- She asks him to sing the tenor part.
Forms
tenor · tenors
Similar words
- countertenor
- Usually sings above the tenor range, often using falsetto.
- baritone
- Has a male singing voice lower than a tenor.