diff --git a/man5/core.5 b/man5/core.5
index e9b01fd03..456366ea6 100644
--- a/man5/core.5
+++ b/man5/core.5
@@ -29,7 +29,7 @@ core \- core dump file
 The default action of certain signals is to cause a process to terminate
 and produce a
 .IR "core dump file" ,
-a disk file containing an image of the process's memory at
+a file containing an image of the process's memory at
 the time of termination.
 This image can be used in a debugger (e.g.,
 .BR gdb (1))
@@ -58,7 +58,7 @@ is the ID of the process that dumped core,
 and is created in the current working directory.
 See below for details on naming.)
 Writing the core file fails if the directory in which
-it is to be created is nonwritable,
+it is to be created is not writable,
 or if a file with the same name exists and
 is not writable
 or is not a regular file
@@ -287,7 +287,7 @@ in earlier kernels,
 meaning that the core dump handler needs to use mechanisms to find
 the executable name.
 .PP
-Instead of being written to a disk file, the core dump is given as
+Instead of being written to a file, the core dump is given as
 standard input to the program.
 Note the following points:
 .IP * 3