Names for the number 0 in English such as 2-2, while null is used for an undefined states (for example a memory location that has not been explicitly initiated). Sporting terms (see above) are sometimes used as slang terms for zero as are "nada", "zilch" and "zip". "Zilch" is a slang term for zero, and it can also mean "nothing". The origin of the term is unknown. Names for the number 0 in English Zero is the usual name for the number 0 in English. In British English "nought" is also used. In American English "naught" is used occasionally for zero, but as with British English, "naught"
Old English grammar known as "ablaut". In this form of conjugation, the stem of the word changes to indicate the tense. Verbs like this persist in modern English; for example "sing, sang, sung" is a strong verb, as are "swim, swam, swum" and "choose, chose, chosen". The root portion of the word changes rather than its ending. In Old English, there were seven major classes of strong verb; each class has its own pattern of stem changes. Learning these is often a challenge for students of the language, though English speakers may see connections between the old verb classes and their modern forms.