diff --git a/torch/optim/optimizer.py b/torch/optim/optimizer.py
index daed8095091..b2e524f26f5 100644
--- a/torch/optim/optimizer.py
+++ b/torch/optim/optimizer.py
@@ -464,7 +464,7 @@ class Optimizer:
             hook (Callable): The user defined hook to be registered.
             prepend (bool): If True, the provided pre ``hook`` will be fired before
                 all the already registered pre-hooks on ``state_dict``. Otherwise,
-                the provided ``hook`` will be fired after all the existing registered
+                the provided ``hook`` will be fired after all the already registered
                 pre-hooks. (default: False)
 
         Returns:
@@ -498,8 +498,8 @@ class Optimizer:
         Args:
             hook (Callable): The user defined hook to be registered.
             prepend (bool): If True, the provided post ``hook`` will be fired before
-                all the existing registered post-hooks on ``state_dict``. Otherwise,
-                the provided ``hook`` will be fired after all the existing registered
+                all the already registered post-hooks on ``state_dict``. Otherwise,
+                the provided ``hook`` will be fired after all the already registered
                 post-hooks. (default: False)
 
         Returns:
@@ -653,9 +653,9 @@ class Optimizer:
         Args:
             hook (Callable): The user defined hook to be registered.
             prepend (bool): If True, the provided pre ``hook`` will be fired before
-                all the existing registered pre-hooks on ``load_state_dict``. Otherwise,
-                the provided ``hook`` will be fired after all the pre-hooks registered
-                before. (default: False)
+                all the already registered pre-hooks on ``load_state_dict``. Otherwise,
+                the provided ``hook`` will be fired after all the already registered
+                pre-hooks. (default: False)
 
         Returns:
             :class:`torch.utils.hooks.RemoveableHandle`:
@@ -688,8 +688,8 @@ class Optimizer:
         Args:
             hook (Callable): The user defined hook to be registered.
             prepend (bool): If True, the provided post ``hook`` will be fired before
-                all the existing registered post-hooks on ``load_state_dict``. Otherwise,
-                the provided ``hook`` will be fired after all the existing registered
+                all the already registered post-hooks on ``load_state_dict``. Otherwise,
+                the provided ``hook`` will be fired after all the already registered
                 post-hooks. (default: False)
 
         Returns: