1.NounIn the French language, usage of the letter h at the start of a word which does not allow liaison with a preceding consonant or elision of a preceding schwa.
"The French word héros ("hero") begins with an aspirated h. Consequently we say le héros /lə e.ʁo/ and les héros /le e.ʁo/, but never /l‿e.ʁo/ and /le‿ze.ʁo/ as we do with the mute h."