diff --git a/arping.c b/arping.c
index 59a2aaee..a0027862 100644
--- a/arping.c
+++ b/arping.c
@@ -583,7 +583,7 @@ static int check_ifflags(struct run_state const *const ctl, unsigned int ifflags
  * Return value:
  *	>0	: Succeeded, and appropriate device not found.
  *		  device.ifindex remains 0.
- *	0	: Succeeded, and approptiate device found.
+ *	0	: Succeeded, and appropriate device found.
  *		  device.ifindex is set.
  *	<0	: Failed.  Support not found, or other
  *		: system error.
diff --git a/ninfod/ninfod.c b/ninfod/ninfod.c
index 95583de4..aa3cd79c 100644
--- a/ninfod/ninfod.c
+++ b/ninfod/ninfod.c
@@ -349,7 +349,7 @@ int ni_send(struct packetcontext *p)
 static void sig_handler(int sig)
 {
 	if (!got_signal && sig)
-		DEBUG(LOG_INFO, "singnal(%d) received, quitting.\n", sig);
+		DEBUG(LOG_INFO, "signal(%d) received, quitting.\n", sig);
 	got_signal = 1;
 }
 
diff --git a/ping/node_info.c b/ping/node_info.c
index 9d9d1e91..ca4d0dbb 100644
--- a/ping/node_info.c
+++ b/ping/node_info.c
@@ -336,7 +336,7 @@ static int niquery_option_subject_name_handler(struct ping_ni *ni, int index, co
 		fqdn = dots ? 1 : -1;
 	}
 
-	buflen = namelen + 3 + 1;	/* dn_comp() requrires strlen() + 3,
+	buflen = namelen + 3 + 1;	/* dn_comp() requires strlen() + 3,
 					   plus non-fqdn indicator. */
 	buf = malloc(buflen);
 	if (!buf) {
diff --git a/ping/ping6_common.c b/ping/ping6_common.c
index 555e2ffb..3fd8b5e4 100644
--- a/ping/ping6_common.c
+++ b/ping/ping6_common.c
@@ -730,7 +730,7 @@ void pr_niquery_reply_addr(struct ni_hdr *nih, int len)
 			break;
 		}
 		if (!inet_ntop(af, p + sizeof(uint32_t), buf, sizeof(buf)))
-			printf(_(" unexpeced error in inet_ntop(%s)"),
+			printf(_(" unexpected error in inet_ntop(%s)"),
 			       strerror(errno));
 		else
 			printf(" %s", buf);
diff --git a/po/iputils.pot b/po/iputils.pot
index 93a33291..6e661dab 100644
--- a/po/iputils.pot
+++ b/po/iputils.pot
@@ -1077,7 +1077,7 @@ msgstr ""
 
 #: ping6_common.c:1119
 #, c-format
-msgid " unexpeced error in inet_ntop(%s)"
+msgid " unexpected error in inet_ntop(%s)"
 msgstr ""
 
 #: ping6_common.c:1128
diff --git a/po/ja.po b/po/ja.po
index 49d89e4d..98ebbd4c 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -1164,7 +1164,7 @@ msgstr "解析エラー (切り詰められました)"
 
 #: ping6_common.c:1119
 #, c-format
-msgid " unexpeced error in inet_ntop(%s)"
+msgid " unexpected error in inet_ntop(%s)"
 msgstr "inet_ntop(%s) で予期せぬエラーが発生しました。"
 
 #: ping6_common.c:1128
diff --git a/rdisc.c b/rdisc.c
index abee668b..90f38ad6 100644
--- a/rdisc.c
+++ b/rdisc.c
@@ -337,7 +337,7 @@ int main(int argc, char **argv)
 				if (argc != 0) {
 					val = strtol(av[0], (char **)NULL, 0);
 					if (val < 4 || val > 1800)
-						error(1, 0, "Bad Max Advertizement Interval: %d",
+						error(1, 0, "Bad Max Advertisement Interval: %d",
 							     val);
 					max_adv_int = val;
 					min_adv_int =( max_adv_int * 3 / 4);