cipher; secret code; password; PIN

at the minimum; at the very least

(archaic) agate; (bound form) standard weight used with a balance scale; number; (computing) code; (clothing) size; yard (unit of length); (coll.) kilometers per hour (informal misuse of "yard" to mean kph in speed references); (coll.) to pile up; to stack; classifier for matters, items, situations etc (esp. when indicating whether they are the same or different, as in 不是一碼事|不是一码事[bu4 shi4 yi1 ma3 shi4] "not the same thing"); (Tw, HK) (finance) unit of 25 basis points (i.e. a 0.25% change in interest rate)

code

bargaining chip; gaming chip; casino token