six

adj. & n. 1 one more than five. 2 symbol for this (6, vi, vi). 3 size etc. Denoted by six. 4 cricket hit scoring six runs. 5 six o'clock.  at sixes and sevens in confusion or disagreement. Knock (or hit) for six colloq. Utterly surprise or overcome. [old english]

a. One more than five; twice three; as, six yards.