diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index ea2bb1a..21bd750 100644
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -811,9 +811,9 @@
 
 .. index::
    triple: unary; arithmetic; operation
-   triple: unary; bit-wise; operation
+   triple: unary; bitwise; operation
 
-All unary arithmetic (and bit-wise) operations have the same priority:
+All unary arithmetic (and bitwise) operations have the same priority:
 
 .. productionlist::
    u_expr: `power` | "-" `u_expr` | "+" `u_expr` | "~" `u_expr`
@@ -830,8 +830,8 @@
 
 .. index:: single: inversion
 
-The unary ``~`` (invert) operator yields the bit-wise inversion of its plain or
-long integer argument.  The bit-wise inversion of ``x`` is defined as
+The unary ``~`` (invert) operator yields the bitwise inversion of its plain or
+long integer argument.  The bitwise inversion of ``x`` is defined as
 ``-(x+1)``.  It only applies to integral numbers.
 
 .. index:: exception: TypeError
@@ -944,10 +944,10 @@
 
 .. _bitwise:
 
-Binary bit-wise operations
-==========================
+Binary bitwise operations
+=========================
 
-.. index:: triple: binary; bit-wise; operation
+.. index:: triple: binary; bitwise; operation
 
 Each of the three bitwise operations has a different priority level:
 
@@ -956,20 +956,20 @@
    xor_expr: `and_expr` | `xor_expr` "^" `and_expr`
    or_expr: `xor_expr` | `or_expr` "|" `xor_expr`
 
-.. index:: pair: bit-wise; and
+.. index:: pair: bitwise; and
 
 The ``&`` operator yields the bitwise AND of its arguments, which must be plain
 or long integers.  The arguments are converted to a common type.
 
 .. index::
-   pair: bit-wise; xor
+   pair: bitwise; xor
    pair: exclusive; or
 
 The ``^`` operator yields the bitwise XOR (exclusive OR) of its arguments, which
 must be plain or long integers.  The arguments are converted to a common type.
 
 .. index::
-   pair: bit-wise; or
+   pair: bitwise; or
    pair: inclusive; or
 
 The ``|`` operator yields the bitwise (inclusive) OR of its arguments, which