(Canada, US, telephony) To use the last-call return service / (slang) To trace back, backtrace

(molecular biology) The large subunit of the eukaryotic 80S ribosomes.

(US, Canada) To press the keys *69 in succession on the keypad of a telephone, usually after a missed call, which results in a last-call return by automatically dialling the telephone number of the last caller.

(video games) Initialism of Super Mario Land 2: 6 Golden Coins.

(computing) An EPIC 64-bit instruction set architecture designed to allow relatively simple, cheap CPUs to execute many 64-bit instructions simultaneously and with potentially very high performance; developed by Intel in the late 1990s with the intent of replacing the older x86 architecture, but was delayed and proved uncompetitive with x86 (especially x86-64), seeing use only in Intel's own Itanium line of high-end CPUs.

(informal) The Public Security Anti-Xie-Jiao Organization (公安部反邪教组, gong'anbu fanxiejiao zu) in the People's Republic of China

Alternative spelling of sixth grader

(computing, networking) an obsolete EUI which originally encompassed both MAC-48 and EUI-48 identifiers by a simple translation mechanism

simple past tense and past participle of *69

present participle of *69