IPA: /ˈkaʊntərˌtɛnə/
KK: /ˈkaʊntərˌtɛnər/
A type of male singer who has a high voice that can sing notes higher than a typical tenor.
The countertenor performed beautifully in the opera, impressing the audience with his high notes.
Countertenor → It is formed from "counter-" (from Latin "contra", meaning against or opposite) and "tenor" (from Latin "tenere", meaning to hold). The term refers to a male singer who sings in a range that is typically opposite to that of a tenor, often in a higher vocal range.
Think of 'counter-' meaning 'opposite' and 'tenor' meaning 'to hold' — a countertenor holds a vocal range that is opposite to the typical tenor.