h /heɪtʃ/noun 12H adjective 5H adverb 1forms 6 noun12 •A grade of pencil with lead that makes darker marks than a pencil of grade 2H; a pencil with hard lead. •Abbreviation of hour, particularly when used as a (non-SI) unit of time alongside International System of Units (SI) units.Another instance: 2ʰ28ᵐ p. m., 10 micra; 3ʰ08ᵐ p. m., 0 micra; irrigated with water: 3ʰ09ᵐ p. m., 4 micra. — 1908 •(slang) Abbreviation of heroin.Then I got some H / From my old Uncle Pete / Now I'm startin' to feel / Like I might've ODed — 2006 •A pencil of grade H. •Abbreviation of half-year.We expect the amendment to enter into force in H2 2013. •Abbreviation of hexadecimal (following a number).If any of the video buffer's background attribute bits are on, MONO converts the attribute to 70h (inverse video). — 1989 •Abbreviation of hits. •Abbreviation of hit, the number of hits by a player. •(slang) Abbreviation of heroin. •Abbreviation of home phone. •Abbreviation of handicap. •(India, Internet) Abbreviation of Hindu; mostly used by Indian Muslim netizens primarily towards Hindutva supporters. H adjective5 •(slang) Pornographic in a way characteristic of hentai.I am going to Berkeley, CA and I was wondering if there were any nearby places to go to get good nasty H stuff. And do you have any recommendations? — 1993 •Abbreviation of hard, in reference to a grade of pencil lead. •Abbreviation of high, in reference to a dialect's social status.An H variety usually enjoys official approval and cultural prestige. •(UK, historical) Abbreviation of horrific, a former film classification. •Abbreviation of hinged. H adverb1 •Synonym of AH: in the year of the Hegira, used to mark dates employing the Islamic calendar. formsH's · Hs · h's · hs · more H · most H