| Subject | Czech | English |
| comp., MS | možnost použití hodnoty null | nullability (The attribute of a column, parameter, or variable that specifies whether it allows null data values) |
| comp., MS | parametr neumožňující hodnotu null | nonnullable parameter (A parameter which cannot take a NULL value) |
| comp., MS | pole s hodnotou Null | null field (" A field containing a Null value. A null field isn't the same as a field that contains a zero-length string (" ") or a field with a value of 0.") |
| comp., MS | typ s možnou hodnotou null | nullable type (In C, an instance of the System.Nullable struct that can represent the normal range of values for its underlying value type, plus an additional null value) |
| comp., MS | vlastnost s možnou hodnotou null | nullable property (A property which controls if a field can have a NULL value) |
| comp., MS | znak Null | null character (" A character code with a null value; literally, a character meaning "nothing." Although it is real in the sense of being recognizable, occupying space internally in the computer, and being sent or received as a character, a NUL character displays nothing, takes no space on the screen or on paper, and causes no specific action when sent to a printer. In ASCII, NUL is represented by the character code 0. ") |