This is the list of names that should not be used for user-defined
arrays, spectra or sortwords.
| ABS | EXTRACT | IOR | PASSES |
| ACOS | FAILS | IRANDOM | PEAKAREA |
| ANGLES | FACTOR | ITEM | PEAKS |
| ARRAYLIST | FIXEDLEN | KEEP | POW |
| ASIN | FLOAT | LABEL | RANDOM |
| AT | FROM | LE | REJECT |
| ATAN | GAIN | LOG | REVERSED |
| CALL | GAINARRAY | LOG10 | ROUTINE |
| CENTROIDS | GAINWORD | LONG | SAMPLE |
| COPYGAIN | GATEARRAY | LOOPEXTRACT | SAVE |
| COS | GATEDBY | LOOPFAIL | SELECT |
| CREATELIST | GATEMAP | LOOPIF | SET |
| DEC | GATES | LT | SIN |
| DELTAS | GOTO | MASK | SQRT |
| DEVIATION | GROUP | MASKEDBY | STEP |
| DISC | GROUPFILTER | NBIT | TAN |
| DOLOOP | GT | NE | TO |
| DOWN | IF | NEWLISTX | UP |
| ELLIPSE2D | INC | NEWLISTY | USER |
| ELLIPSE3D | INCBITS | NOT | VALUEARRAY |
| ELSE | INDEXED | NOMATCH | VALID |
| END | INDEXED | NUMBER | VALUE |
| ENDEVENT | INDEXED | NWORDS | VARLEN |
| EQ | INIT | OFFSET | VOVERC |
| EVENT | INTO | ORDER | WORD |
| EXEC | INVALID | ORDERED | XOR |
| EXP | INVALIDATE | OUTPUT | |
