diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index db60c965..cb766bfc 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -39,7 +39,7 @@ which is only run during development.
 file in the repository. The goal is to have a test suite which runs for
 every new merge request prior to merging. There are no particular rules for
 the test targets, except for them being reliable and running in a reasonable
-timeframe (~1 hour).
+time frame (~1 hour).
 
 
 ## Reviewing code
diff --git a/NEWS b/NEWS
index 627ce131..30c6dd32 100644
--- a/NEWS
+++ b/NEWS
@@ -356,7 +356,7 @@
 * Version 0.10.9 (released 2015-10-07)
 - When compiled with GnuTLS 3.4 automatically sort the certificate list
   to be imported.
-- Reload the CRL during periodic maintaince if its modification time
+- Reload the CRL during periodic maintenance if its modification time
   changes.
 - Address issue with duplicate check failing on IPv6 addresses (issue #5).
 - Added the ability to specify a UsersFile in plain auth for using an OTP.
diff --git a/doc/README-oidc.md b/doc/README-oidc.md
index 58b90fe8..43a6691a 100644
--- a/doc/README-oidc.md
+++ b/doc/README-oidc.md
@@ -24,7 +24,7 @@ For as more detailed explanation see the OpenID Connect protocol (<https://openi
 
 ## Deploying OIDC authentication
 
-An administrator wanting to deployg OIDC as an authentication scheme must do the following:
+An administrator wanting to deploy OIDC as an authentication scheme must do the following:
 
 1) Register an application identity with the OIDC provider
 2) Obtain the token endpoint and the OpenID Connect metadata document endpoint for their OIDC provider
diff --git a/doc/README-radius.md b/doc/README-radius.md
index 56f49486..1978f397 100644
--- a/doc/README-radius.md
+++ b/doc/README-radius.md
@@ -70,7 +70,7 @@ remain valid until the `cookie-timeout` value expires.
 Dictionary
 ==========
 
-Ocserv supports the following radious attributes.
+Ocserv supports the following radius attributes.
 
 ```
 #	Standard attributes
diff --git a/doc/design.md b/doc/design.md
index cc00da83..39d5f2b6 100644
--- a/doc/design.md
+++ b/doc/design.md
@@ -22,7 +22,7 @@ The main component consists of the process which is tasked to:
  * State is passed between main process and worker via an environment 
    variable.
 
- * Listen for incomping UDP "connections" and forward the packet stream
+ * Listen for incoming UDP "connections" and forward the packet stream
    to the appropriate worker process. - See main.c
 
  * Create and forward to workers with an authenticated user a dedicated
diff --git a/src/auth/openidconnect.c b/src/auth/openidconnect.c
index e7f5c01d..c20d1940 100644
--- a/src/auth/openidconnect.c
+++ b/src/auth/openidconnect.c
@@ -515,7 +515,7 @@ static json_t *oidc_extract_claims(cjose_jws_t * jws)
 	return token_claims;
 }
 
-static bool oidc_verify_singature(oidc_vctx_st * vctx, cjose_jws_t * jws)
+static bool oidc_verify_signature(oidc_vctx_st * vctx, cjose_jws_t * jws)
 {
 	bool result = false;
 
@@ -616,7 +616,7 @@ static bool oidc_verify_token(oidc_vctx_st * vctx, const char *token,
 		goto cleanup;
 	}
 
-	if (!oidc_verify_singature(vctx, jws)) {
+	if (!oidc_verify_signature(vctx, jws)) {
 		syslog(LOG_NOTICE,
 		       "ocserv-oidc: Token signature validation failed\n");
 		goto cleanup;
diff --git a/src/ccan/list/list.h b/src/ccan/list/list.h
index ee6cb62f..17f6c7fb 100644
--- a/src/ccan/list/list.h
+++ b/src/ccan/list/list.h
@@ -381,7 +381,7 @@ static inline const void *list_tail_(const struct list_head *h, size_t off)
  * @off: offset(relative to @i) at which list node data resides.
  *
  * This is a low-level wrapper to iterate @i over the entire list, used to
- * implement all oher, more high-level, for-each constructs. It's a for loop,
+ * implement all other, more high-level, for-each constructs. It's a for loop,
  * so you can break and continue as normal.
  *
  * WARNING! Being the low-level macro that it is, this wrapper doesn't know
@@ -390,7 +390,7 @@ static inline const void *list_tail_(const struct list_head *h, size_t off)
  * properly filled `struct node_list' which in turn contains pointers to
  * memory chunks and it's turtles all the way down. With all that in mind
  * remember that given the wrong pointer/offset couple this macro will
- * happilly churn all you memory until SEGFAULT stops it, in other words
+ * happily churn all you memory until SEGFAULT stops it, in other words
  * caveat emptor.
  *
  * It is worth mentioning that one of legitimate use-cases for that wrapper
diff --git a/src/sec-mod-auth.c b/src/sec-mod-auth.c
index b4b2f3fd..c169c58b 100644
--- a/src/sec-mod-auth.c
+++ b/src/sec-mod-auth.c
@@ -902,7 +902,7 @@ void sec_auth_user_deinit(sec_mod_st *sec, client_entry_st *e)
 
 	vhost = e->vhost;
 
-	seclog(sec, LOG_DEBUG, "permamently closing session of user '%s' "SESSION_STR, e->acct_info.username, e->acct_info.safe_id);
+	seclog(sec, LOG_DEBUG, "permanently closing session of user '%s' "SESSION_STR, e->acct_info.username, e->acct_info.safe_id);
 	if (vhost->perm_config.acct.amod != NULL && vhost->perm_config.acct.amod->close_session != NULL && e->session_is_open != 0) {
 		vhost->perm_config.acct.amod->close_session(e->vhost_acct_ctx, e->auth_type, &e->acct_info, &e->saved_stats, e->discon_reason);
 	}