noun
h (letter), the letter H
A1
h is the letter 'H' (the letter H). In German letters are neuter: das H. Plural often written Hs; genitive des Hs adds -s. Pronounced roughly 'ha' in German. Used when spelling words; declines like a neuter noun with an -s in genitive singular.
Examples
Schreibe ein kleines h, kein großes H.
Write a lowercase h, not an uppercase H.
Der Lehrer schrieb das h an die Tafel, obwohl die Klasse schon den nächsten Buchstaben übte.
The teacher wrote the h on the blackboard, although the class was already practicing the next letter.
Das h ist der achte Buchstabe im Alphabet.
The letter h is the eighth letter of the alphabet.
Details
Mnemonics
imagine the shape of the letter 'h'
das (treated as a neuter letter: das H)
Notes
Letters are often referred to as 'der Buchstabe H' or simply 'das H' in German.