遺墨 （イボク） autographs (brushwork) of departed person
水墨 （スイボク） water and ink, ink painting
Kunyomi Examples
墨 （すみ） sumi, India ink, Chinese ink, ink stick, ink-cake, squid ink, octopus ink, carpenter's inking string
墨付き （すみつき） certificate, certified document, authorization, authorisation, (the) thumbs up, seal of approval, paper with signature of the shogun or lord
烏賊墨 （いかすみ） squid ink
雪と墨 （ゆきとすみ） diametric opposites, night and day, black and white, snow and ink
Kanji
Jōyō kanji, Taught in junior high
JLPT level: N1
1616 of 2500 most used kanji in newspapers
Stroke count: 14
Meaning: black ink, India ink, ink stick, Mexico
Kunyomi: すみ
Onyomi: ボク
Composition: 黒 土
墨
Radical
Radical: 土
Meaning: earth
土
Examples
Onyomi Examples
墨 （ボク） Mexico, Mohism, ink, tattooing
墨書 （ボクショ） writing in India ink
遺墨 （イボク） autographs (brushwork) of departed person
水墨 （スイボク） water and ink, ink painting
Kunyomi Examples
墨 （すみ） sumi, India ink, Chinese ink, ink stick, ink-cake, squid ink, octopus ink, carpenter's inking string
墨付き （すみつき） certificate, certified document, authorization, authorisation, (the) thumbs up, seal of approval, paper with signature of the shogun or lord
烏賊墨 （いかすみ） squid ink
雪と墨 （ゆきとすみ） diametric opposites, night and day, black and white, snow and ink