Hard sign

Common card · No. 264456

The letter Ъ ъ (italics Ъ, ъ) of the Cyrillic script is known as the hard sign (Russian: твёрдый знак, romanized: tvërdyj znak, pronounced [ˈtvʲɵrdɨj ˈznak], Rusyn: твердый знак, romanized: tverdyj znak) in the modern Russian and some varieties of Rusyn alphabet (in Rusyn, ъ could also be known as ір, ir), as yer in Old Church Slavonic (Church Slavonic: ѥръ, romanized: jerъ), as er golyam (ер голям, "big er") in the Bulgarian alphabet, as debelo jer (дебело їер, "thick yer") in pre-reform Serbian orthography, and as ayirish belgisi in the Uzbek Cyrillic alphabet. Originally in Old Church Slavonic the yer denoted an ultra-short or reduced mid rounded vowel. It is one of two reduced vowels that are collectively known as the yers in Slavic philology.

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