## 14.3. Reserved Macro and String Names

The following macro and string names are used by the ms package. Avoid using these names for compatibility with the existing macros. An italicized n means that the name contains a numeral (generally the interpolated value of a number register).

`,` | `.]` | `:` | `[.` | `[c` | `[o` | `^` | `‘` | `~`
`1C` | `2C` | `AB` | `AE` | `AI` | `A` `n` | `AT` | `AU` | `AX`
`B` | `B1` | `B2` | `BB` | `BG` | `BT` | `BX` | `C` | `C1`
`C2` | `CA` | `CC` | `CF` | `CH` | `CM` | `CT` | `DA` | `DW`
`DY` | `EE` | `EG` | `EL` | `EM` | `EN` | `E` `n` | `EQ` | `EZ`
`FA` | `FE` | `FF` | `FG` | `FJ` | `FK` | `FL` | `FN` | `FO`
`FS` | `FV` | `FX` | `FY` | `HO` | `I` | `IE` | `IH` | `IM`
`I` `n` | `IP` | `IZ` | `KD` | `KF` | `KJ` | `KS` | `LB` | `LG`
`LP` | `LT` | `MC` | `ME` | `MF` | `MH` | `MN` | `MO` | `MR`
`ND` | `NH` | `NL` | `NP` | `OD` | `OK` | `PP` | `PT` | `PY`
`QE` | `QF` | `QP` | `QS` | `R` | `R3` | `RA` | `RC` | `RE`
`R` `n` | `RP` | `RS` | `RT` | `S0` | `S2` | `S3` | `SG` | `SH`
`SM` | `SN` | `SY` | `TA` | `TC` | `TD` | `TE` | `TH` | `TL`
`TM` | `TQ` | `TR` | `TS` | `TT` | `TX` | `UL` | `US` | `UX`
`WB` | `WH` | `WT` | `XF` | `XK` | `XP` |  |  |

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