(Britain) Abbreviation of hard in reference to a grade of pencil lead. / (linguistics) Abbreviation of high |in reference to a dialect's social status. / (philately) Abbreviation of hinged.

The ordinal number eighth, derived from this letter of the English alphabet, called aitch and written in the Latin script.

(chiefly Internet slang) Used as a filler response when one does not have a response to use. Almost always used by itself.

(sciences) Abbreviation of hour (particularly when used as a (non-SI) unit of time alongside International System of Units (SI) units)

The eighth letter of the English alphabet, called aitch and written in the Latin script.

(text messaging) hat

Abbreviation of quarter-hard (reference to alloy strength, as in between dead soft and half hard).

(rare) Emphasises obscenities. / (dated, fandom slang, humorous) Indicates a fannish context or an association with science fiction fandom.

Alternative form of H+

transhumanism