diff --git a/advent.h b/advent.h
index 754ea16..4c31465 100644
--- a/advent.h
+++ b/advent.h
@@ -167,17 +167,9 @@ extern int restore(FILE *);
 #define INDEEP(LOC)	((LOC) >= LOC_MISTHALL && !OUTSID(LOC))
 
 /* vocabulary items */
-extern long NUL;
-extern long BACK;
-extern long LOOK;
-extern long CAVE;
 extern long FIND;
 extern long INVENT;
 extern long SAY;
-extern long ENTER;
-extern long STREAM;
-extern long DPRSSN;
-extern long ENTRNC;
 extern long LOCK;
 extern long THROW;
 
diff --git a/adventure.yaml b/adventure.yaml
index 14c02fc..26c1fd9 100644
--- a/adventure.yaml
+++ b/adventure.yaml
@@ -385,7 +385,7 @@ motions: !!omap
     words: !!null
 - MOT_2:
     words: ['road', 'hill']
-- MOT_3:
+- ENTER:
     words: ['enter']
 - MOT_4:
     words: ['upstr']
@@ -395,7 +395,7 @@ motions: !!omap
     words: ['fores']
 - MOT_7:
     words: ['forwa', 'conti', 'onwar']
-- MOT_8:
+- BACK:
     words: ['back', 'retur', 'retre']
 - MOT_9:
     words: ['valle']
@@ -407,7 +407,7 @@ motions: !!omap
     words: ['build', 'house']
 - MOT_13:
     words: ['gully']
-- MOT_14:
+- STREAM:
     words: ['strea']
 - MOT_15:
     words: ['fork']
@@ -421,7 +421,7 @@ motions: !!omap
     words: ['inwar', 'insid', 'in']
 - MOT_20:
     words: ['surfa']
-- MOT_21:
+- NUL:
     words: ['null', 'nowhe']
 - MOT_22:
     words: ['dark']
@@ -493,7 +493,7 @@ motions: !!omap
     words: ['y2']
 - MOT_56:
     words: ['climb']
-- MOT_57:
+- LOOK:
     words: ['look', 'exami', 'touch', 'descr']
 - MOT_58:
     words: ['floor']
@@ -505,15 +505,15 @@ motions: !!omap
     words: ['slab', 'slabr']
 - MOT_62:
     words: ['xyzzy']
-- MOT_63:
+- DPRSSN:
     words: ['depre']
-- MOT_64:
+- ENTRNC:
     words: ['entra']
 - MOT_65:
     words: ['plugh']
 - MOT_66:
     words: ['secre']
-- MOT_67:
+- CAVE:
     words: ['cave']
 - MOT_68:
     words: !!null
diff --git a/cheat.c b/cheat.c
index 2cf3324..89b9201 100644
--- a/cheat.c
+++ b/cheat.c
@@ -13,17 +13,9 @@ struct game_t game;
 long LNLENG, LNPOSN;
 char rawbuf[LINESIZE], INLINE[LINESIZE + 1];
 
-long NUL;
-long BACK;
-long LOOK;
-long CAVE;
 long FIND;
 long INVENT;
 long SAY;
-long ENTER;
-long STREAM;
-long DPRSSN;
-long ENTRNC;
 long LOCK;
 long THROW;
 
diff --git a/init.c b/init.c
index 129d17f..0ac3c4d 100644
--- a/init.c
+++ b/init.c
@@ -74,17 +74,7 @@ void initialise(void)
 
     /* Define some handy mnemonics. */
 
-    /* These are motion-verb numbers. */
-    BACK = VOCWRD(WORD_BACK, 0);
-    CAVE = VOCWRD(WORD_CAVE, 0);
-    DPRSSN = VOCWRD(WORD_DPRSSN, 0);
-    ENTER = VOCWRD(WORD_ENTER, 0);
-    ENTRNC = VOCWRD(WORD_ENTRNC, 0);
-    LOOK = VOCWRD(WORD_LOOK, 0);
-    NUL = VOCWRD(WORD_NUL, 0);
-    STREAM = VOCWRD(WORD_STREAM, 0);
-
-    /* And some action verbs. */
+    /* Some action verbs. */
     FIND = VOCWRD(WORD_FIND, 2);
     INVENT = VOCWRD(WORD_INVENT, 2);
     LOCK = VOCWRD(WORD_LOCK, 2);
diff --git a/main.c b/main.c
index b598124..c02bd3c 100644
--- a/main.c
+++ b/main.c
@@ -43,17 +43,9 @@ struct game_t game;
 long LNLENG, LNPOSN;
 char rawbuf[LINESIZE], INLINE[LINESIZE + 1];
 
-long NUL;
-long BACK;
-long LOOK;
-long CAVE;
 long FIND;
 long INVENT;
 long SAY;
-long ENTER;
-long STREAM;
-long DPRSSN;
-long ENTRNC;
 long LOCK;
 long THROW;