Significatio vocis cifra | Babel Free

Definitiones

1. numeral, cipher
   Medieval-Latin, declension-1
2. zero (symbol)
   Medieval-Latin, declension-1
3. Equivalent to 'zero': NATO & ICAO radiotelephony clear code (spelling-alphabet name) for the digit 0

Aequivalentia

Exempla

“Decima figura dicitur theta, vel circulus, vel cifra, vel figura nihili quia nihil significat, sed locum tenens dat aliis significare: nam sine cifra vel cifris purus non potest scribi articulus.”

The tenth symbol is called theta, or circle, or zero, or the null symbol, which indicates none, but, holding a place, gives a different meaning: for without a zero or zeroes, it is not possible to write the pure single word.

Gradus CEFR