diff --git a/libmisc/cleanup_user.c b/libmisc/cleanup_user.c
index 686b380b..da9260e5 100644
--- a/libmisc/cleanup_user.c
+++ b/libmisc/cleanup_user.c
@@ -16,9 +16,9 @@
 #include "shadowlog.h"
 
 /*
- * cleanup_report_add_user - Report failure to add an user to the system
+ * cleanup_report_add_user - Report failure to add a user to the system
  *
- * It should be registered when it is decided to add an user to the system.
+ * It should be registered when it is decided to add a user to the system.
  */
 void cleanup_report_add_user (void *user_name)
 {
@@ -51,10 +51,10 @@ void cleanup_report_mod_passwd (void *cleanup_info)
 }
 
 /*
- * cleanup_report_add_user_passwd - Report failure to add an user to
+ * cleanup_report_add_user_passwd - Report failure to add a user to
  * /etc/passwd
  *
- * It should be registered when it is decided to add an user to the
+ * It should be registered when it is decided to add a user to the
  * /etc/passwd database.
  */
 void cleanup_report_add_user_passwd (void *user_name)
@@ -71,10 +71,10 @@ void cleanup_report_add_user_passwd (void *user_name)
 }
 
 /*
- * cleanup_report_add_user_shadow - Report failure to add an user to
+ * cleanup_report_add_user_shadow - Report failure to add a user to
  * /etc/shadow
  *
- * It should be registered when it is decided to add an user to the
+ * It should be registered when it is decided to add a user to the
  * /etc/shadow database.
  */
 void cleanup_report_add_user_shadow (void *user_name)
diff --git a/libmisc/user_busy.c b/libmisc/user_busy.c
index 1a4ea341..53d9c589 100644
--- a/libmisc/user_busy.c
+++ b/libmisc/user_busy.c
@@ -32,7 +32,7 @@ static int user_busy_utmp (const char *name);
 #endif				/* !__linux__ */
 
 /*
- * user_busy - check if an user if currently running processes
+ * user_busy - check if a user is currently running processes
  */
 int user_busy (const char *name, uid_t uid)
 {
diff --git a/src/groupmems.c b/src/groupmems.c
index a962c055..50c5fc86 100644
--- a/src/groupmems.c
+++ b/src/groupmems.c
@@ -89,7 +89,7 @@ static char *whoami (void)
 }
 
 /*
- * add_user - Add an user to the specified group
+ * add_user - Add a user to the specified group
  */
 static void add_user (const char *user,
                       const struct group *grp)
@@ -172,7 +172,7 @@ static void add_user (const char *user,
 }
 
 /*
- * remove_user - Remove an user from a given group
+ * remove_user - Remove a user from a given group
  */
 static void remove_user (const char *user,
                          const struct group *grp)
diff --git a/src/lastlog.c b/src/lastlog.c
index 727650ca..6b961974 100644
--- a/src/lastlog.c
+++ b/src/lastlog.c
@@ -50,7 +50,7 @@ static time_t inverse_seconds;	/* that number of days in seconds */
 static struct stat statbuf;	/* fstat buffer for file size */
 
 
-static bool uflg = false;	/* print only an user of range of users */
+static bool uflg = false;	/* print only a user of range of users */
 static bool tflg = false;	/* print is restricted to most recent days */
 static bool bflg = false;	/* print excludes most recent days */
 static bool Cflg = false;	/* clear record for user */
@@ -69,7 +69,7 @@ usage (int status)
 	                  "Options:\n"),
 	                Prog);
 	(void) fputs (_("  -b, --before DAYS             print only lastlog records older than DAYS\n"), usageout);
-	(void) fputs (_("  -C, --clear                   clear lastlog record of an user (usable only with -u)\n"), usageout);
+	(void) fputs (_("  -C, --clear                   clear lastlog record of a user (usable only with -u)\n"), usageout);
 	(void) fputs (_("  -h, --help                    display this help message and exit\n"), usageout);
 	(void) fputs (_("  -R, --root CHROOT_DIR         directory to chroot into\n"), usageout);
 	(void) fputs (_("  -S, --set                     set lastlog record to current time (usable only with -u)\n"), usageout);
diff --git a/src/login.c b/src/login.c
index f8edd5a2..5f31a417 100644
--- a/src/login.c
+++ b/src/login.c
@@ -430,7 +430,7 @@ static void get_pam_user (char **ptr_pam_user)
 
 /*
  * get_failent_user - Return a string that can be used to log failure
- *                    from an user.
+ *                    from a user.
  *
  * This will be either the user argument, or "UNKNOWN".
  *
diff --git a/src/login_nopam.c b/src/login_nopam.c
index 82ccdc43..4b0f6882 100644
--- a/src/login_nopam.c
+++ b/src/login_nopam.c
@@ -243,7 +243,7 @@ static bool user_match (const char *tok, const char *string)
 		}
 #ifdef PRIMARY_GROUP_MATCH
 		/*
-		 * If the string is an user whose initial GID matches the token,
+		 * If the string is a user whose initial GID matches the token,
 		 * accept it. May avoid excessively long lines in /etc/group.
 		 * Radu-Adrian Feurdean <raf@licj.soroscj.ro>
 		 *
diff --git a/src/newusers.c b/src/newusers.c
index 45b6954a..670168e6 100644
--- a/src/newusers.c
+++ b/src/newusers.c
@@ -1126,7 +1126,7 @@ int main (int argc, char **argv)
 		}
 
 		/*
-		 * First check if we have to create or update an user
+		 * First check if we have to create or update a user
 		 */
 		pw = pw_locate (fields[0]);
 		/* local, no need for xgetpwnam */