Talent; gift; a faculty or function (often seen in compounds or older/technical usage).
古い文献では「能」は人の才能や働きを表すことがある。
In old texts, '能' can denote a person's talent or faculty.
この器具は本来の能を十分に発揮していない。
This device is not fully performing its intended function.
Noh (the traditional Japanese musical-drama known as Noh).
昨夜、能を初めて見に行った。
I went to see Noh for the first time last night.
能は面や衣装、独特の所作が特徴的だ。
Noh is characterized by masks, costumes, and distinctive movements.