noun, noun which may take the genitive case particle 'no'
skillful penmanship; skilled calligrapher
Can refer either to the skill itself or to a person with that skill. Often used in contexts praising handwriting or calligraphy.
彼は能筆で、年賀状の宛名書きを頼まれる。
He is a skilled calligrapher and is asked to address New Year's cards.
祖父の能筆にはいつも感心する。
I'm always impressed by my grandfather's skillful penmanship.