System Functions and Variables (A-Z)

`⎕A`	`⎕AI`	`⎕AN`	`⎕ARBIN`	`⎕ARBOUT`	`⎕AT`	`⎕ATX`	`⎕AV`	`⎕AVU`	`⎕BASE`
`⎕C`	`⎕CLASS`	`⎕CLEAR`	`⎕CMD`	`⎕CR`	`⎕CS`	`⎕CSV`	`⎕CT`	`⎕CY`	`⎕D`
`⎕DCT`	`⎕DF`	`⎕DIV`	`⎕DL`	`⎕DM`	`⎕DMX`	`⎕DQ`	`⎕DR`	`⎕DT`	`⎕ED`
`⎕EM`	`⎕EN`	`⎕EX`	`⎕EXCEPTION`	`⎕EXPORT`	`⎕FAPPEND`	`⎕FAVAIL`	`⎕FCHK`	`⎕FCOPY`	`⎕FCREATE`
`⎕FDROP`	`⎕FERASE`	`⎕FHIST`	`⎕FHOLD`	`⎕FIX`	`⎕FLIB`	`⎕FMT`	`⎕FNAMES`	`⎕FNUMS`	`⎕FPROPS`
`⎕FR`	`⎕FRDAC`	`⎕FRDCI`	`⎕FREAD`	`⎕FRENAME`	`⎕FREPLACE`	`⎕FRESIZE`	`⎕FSIZE`	`⎕FSTAC`	`⎕FSTIE`
`⎕FTIE`	`⎕FUNTIE`	`⎕FX`	`⎕INSTANCES`	`⎕IO`	`⎕JSON`	`⎕KL`	`⎕LC`	`⎕LOAD`	`⎕LOCK`
`⎕LX`	`⎕MAP`	`⎕MKDIR`	`⎕ML`	`⎕MONITOR`	`⎕NA`	`⎕NAPPEND`	`⎕NC`	`⎕NCOPY`	`⎕NCREATE`
`⎕NDELETE`	`⎕NERASE`	`⎕NEW`	`⎕NEXISTS`	`⎕NGET`	`⎕NINFO`	`⎕NL`	`⎕NLOCK`	`⎕NMOVE`	`⎕NNAMES`
`⎕NNUMS`	`⎕NPARTS`	`⎕NPUT`	`⎕NQ`	`⎕NR`	`⎕NREAD`	`⎕NRENAME`	`⎕NREPLACE`	`⎕NRESIZE`	`⎕NS`
`⎕NSI`	`⎕NSIZE`	`⎕NTIE`	`⎕NULL`	`⎕NUNTIE`	`⎕NXLATE`	`⎕OFF`	`⎕OPT`	`⎕OR`	`⎕PATH`
`⎕PFKEY`	`⎕PP`	`⎕PROFILE`	`⎕PW`	`⎕R`	`⎕REFS`	`⎕RL`	`⎕RSI`	`⎕RTL`	`⎕S`
`⎕SAVE`	`⎕SD`	`⎕SE`	`⎕SH`	`⎕SHADOW`	`⎕SI`	`⎕SIGNAL`	`⎕SIZE`	`⎕SM`	`⎕SR`
`⎕SRC`	`⎕STACK`	`⎕STATE`	`⎕STOP`	`⎕SVC`	`⎕SVO`	`⎕SVQ`	`⎕SVR`	`⎕SVS`	`⎕TALLOC`
`⎕TC`	`⎕TCNUMS`	`⎕TGET`	`⎕THIS`	`⎕TID`	`⎕TKILL`	`⎕TNAME`	`⎕TNUMS`	`⎕TPOOL`	`⎕TPUT`
`⎕TRACE`	`⎕TRAP`	`⎕TREQ`	`⎕TS`	`⎕TSYNC`	`⎕UCS`	`⎕USING`	`⎕VFI`	`⎕VR`	`⎕WA`
`⎕WC`	`⎕WG`	`⎕WN`	`⎕WS`	`⎕WSID`	`⎕WX`	`⎕XML`	`⎕XSI`	`⎕XT`	`⎕Ⓐ`

Column-wise