diff --git a/Doc/c-api/typeobj.rst b/Doc/c-api/typeobj.rst
index 6cbcc27..532508e 100644
--- a/Doc/c-api/typeobj.rst
+++ b/Doc/c-api/typeobj.rst
@@ -1256,7 +1256,7 @@
    signature.  It should modify its first operand, and return it.  This slot
    may be left to *NULL*, in this case :c:func:`!PySequence_InPlaceConcat`
    will fall back to :c:func:`PySequence_Concat`.  It is also used by the
-   augmented assignment ``+=``, after trying numeric inplace addition
+   augmented assignment ``+=``, after trying numeric in-place addition
    via the :c:member:`~PyNumberMethods.nb_inplace_add` slot.
 
 .. c:member:: ssizeargfunc PySequenceMethods.sq_inplace_repeat
@@ -1265,7 +1265,7 @@
    signature.  It should modify its first operand, and return it.  This slot
    may be left to *NULL*, in this case :c:func:`!PySequence_InPlaceRepeat`
    will fall back to :c:func:`PySequence_Repeat`.  It is also used by the
-   augmented assignment ``*=``, after trying numeric inplace multiplication
+   augmented assignment ``*=``, after trying numeric in-place multiplication
    via the :c:member:`~PyNumberMethods.nb_inplace_multiply` slot.
 
 
diff --git a/Doc/library/operator.rst b/Doc/library/operator.rst
index e4d6d05..11152f6 100644
--- a/Doc/library/operator.rst
+++ b/Doc/library/operator.rst
@@ -438,8 +438,8 @@
 | Ordering              | ``a > b``               | ``gt(a, b)``                          |
 +-----------------------+-------------------------+---------------------------------------+
 
-Inplace Operators
------------------
+In-place Operators
+------------------
 
 Many operations have an "in-place" version.  Listed below are functions
 providing a more primitive access to in-place operators than the usual syntax
@@ -462,7 +462,7 @@
 >>> a
 'hello'
 
-For mutable targets such as lists and dictionaries, the inplace method
+For mutable targets such as lists and dictionaries, the in-place method
 will perform the update, so no subsequent assignment is necessary:
 
 >>> s = ['h', 'e', 'l', 'l', 'o']