The English word for twelve is: twelve.

Phonetic symbols: English [twelv] and American [twelv]. The ordinal words of twelve change irregularly. You need to change ve into f and add th, twelfth. The phonetic symbols are: English [twelfθ] and American [twelfθ].

Can be used as nouns and adjectives, such as Theyearisdividedintotwelvemonths. Twelve as a noun also means 12 o'clock, for example: Ishallstayhereuntiltwelveo\'clock. The ordinal number of 12 is twelfth, such as; Ihadtohalfanhourtojump, Iwastwelfthinline.