diff --git a/README.md b/README.md
index c4ad5a3..8b5315a 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ ltask is inspired by skynet (https://github.com/cloudwu/skynet) , but it's a lib
 
 It implement an n:m scheduler , so that you can run M lua VMs on N OS threads.
 
-Each lua service (an indepentent lua VM) works in request/response mode, they use message channels to inter-communicate.
+Each lua service (an independent lua VM) works in request/response mode, they use message channels to inter-communicate.
 
 `root` is a special service that can spawn new services. For example, 
 
@@ -45,4 +45,4 @@ Test
 ====
 ```
 lua test.lua
-```
\ No newline at end of file
+```
diff --git a/lualib/bootstrap.lua b/lualib/bootstrap.lua
index 2b818f9..cb41689 100644
--- a/lualib/bootstrap.lua
+++ b/lualib/bootstrap.lua
@@ -1,7 +1,7 @@
 local boot = require "ltask.bootstrap"
 
 local SERVICE_ROOT <const> = 1
-local MESSSAGE_SYSTEM <const> = 0
+local MESSAGE_SYSTEM <const> = 0
 
 local function bootstrap_root(initfunc, config)
 	local sid = assert(boot.new_service("root", config.service_source, config.service_chunkname, SERVICE_ROOT))
@@ -18,7 +18,7 @@ local function bootstrap_root(initfunc, config)
 		from = SERVICE_ROOT,
 		to = SERVICE_ROOT,
 		session = 1,	-- 1 for root init
-		type = MESSSAGE_SYSTEM,
+		type = MESSAGE_SYSTEM,
 		message = init_msg,
 		size = sz,
 	}
diff --git a/lualib/service.lua b/lualib/service.lua
index bbd56ea..fa490aa 100644
--- a/lualib/service.lua
+++ b/lualib/service.lua
@@ -288,7 +288,7 @@ local function post_response_message(addr, session, type, msg, sz)
 	end
 end
 
-function ltask.rasie_error(addr, session, message)
+function ltask.raise_error(addr, session, message)
 	if session == SESSION_SEND_MESSAGE then
 		return
 	end
@@ -702,7 +702,7 @@ function ltask.quit()
 	ltask.fork(function ()
 		for co, addr in pairs(session_coroutine_address) do
 			local session = session_coroutine_response[co]
-			ltask.rasie_error(addr, session, "Service has been quit.")
+			ltask.raise_error(addr, session, "Service has been quit.")
 		end
 		quit = true
 	end)
diff --git a/service/root.lua b/service/root.lua
index 0c2154e..80e4172 100644
--- a/service/root.lua
+++ b/service/root.lua
@@ -12,7 +12,7 @@ local MESSAGE_SCHEDULE_DEL <const> = 1
 
 local RECEIPT_ERROR <const> = 2
 local RECEIPT_BLOCK <const> = 3
-local RECEIPT_RESPONCE <const> = 4
+local RECEIPT_RESPONSE <const> = 4
 
 local S = {}
 
@@ -117,7 +117,7 @@ end
 
 local function spawn(t)
 	local type, address = ltask.post_message(SERVICE_SYSTEM, 0, MESSAGE_SCHEDULE_NEW)
-	if type ~= RECEIPT_RESPONCE then
+	if type ~= RECEIPT_RESPONSE then
 		-- RECEIPT_ERROR
 		error("send MESSAGE_SCHEDULE_NEW failed.")
 	end
@@ -244,7 +244,7 @@ local function del_service(address)
 		for i=1, #msg, 2 do
 			local addr = msg[i]
 			local session = msg[i+1]
-			ltask.rasie_error(addr, session, err)
+			ltask.raise_error(addr, session, err)
 		end
 	end
 end
diff --git a/src/ltask.c b/src/ltask.c
index fe73690..6402d6c 100644
--- a/src/ltask.c
+++ b/src/ltask.c
@@ -150,7 +150,7 @@ dispatch_schedule_message(struct ltask *task, service_id id, struct message *msg
 		if (msg->to.id == 0) {
 			service_write_receipt(P, id, MESSAGE_RECEIPT_ERROR, msg);
 		} else {
-			service_write_receipt(P, id, MESSAGE_RECEIPT_RESPONCE, msg);
+			service_write_receipt(P, id, MESSAGE_RECEIPT_RESPONSE, msg);
 		}
 		break;
 	case MESSAGE_SCHEDULE_DEL:
@@ -222,7 +222,7 @@ collect_done_job(struct ltask *task, service_id done_job[]) {
 }
 
 static void
-dispath_out_messages(struct ltask *task, const service_id done_job[], int done_job_n) {
+dispatch_out_messages(struct ltask *task, const service_id done_job[], int done_job_n) {
 	struct service_pool *P = task->services;
 	int i;
 
@@ -483,7 +483,7 @@ schedule_dispatch(struct ltask *task) {
 		schedule_back(task, id);
 	}
 
-	// Step 1 : dispatch external messsages
+	// Step 1 : dispatch external messages
 
 	if (task->external_message) {
 		dispatch_external_messages(task);
@@ -495,7 +495,7 @@ schedule_dispatch(struct ltask *task) {
 	int done_job_n = collect_done_job(task, jobs);
 
 	// Step 3: Dispatch out message by service_done
-	dispath_out_messages(task, jobs, done_job_n);
+	dispatch_out_messages(task, jobs, done_job_n);
 
 	// Step 4: get pending jobs
 	int job_n = get_pending_jobs(task, jobs);
@@ -857,7 +857,7 @@ ltask_init(lua_State *L) {
 static void *
 get_ptr(lua_State *L, const char *key) {
 	if (lua_getfield(L, LUA_REGISTRYINDEX, key) == LUA_TNIL) {
-		luaL_error(L, "%s is absense", key);
+		luaL_error(L, "%s is absence", key);
 		return NULL;
 	}
 	void * v = lua_touserdata(L, -1);
@@ -984,10 +984,10 @@ ltask_deinit(lua_State *L) {
 
 	int i;
 	for (i=0;i<task->config->worker;i++) {
-		worker_destory(&task->workers[i]);
+		worker_destroy(&task->workers[i]);
 	}
 
-	service_destory(task->services);
+	service_destroy(task->services);
 	queue_delete(task->schedule);
 	timer_destroy(task->timer);
 
@@ -1419,7 +1419,7 @@ lmessage_receipt(lua_State *L) {
 	lua_pushinteger(L, receipt);
 	if (m == NULL)
 		return 1;
-	if (receipt == MESSAGE_RECEIPT_RESPONCE) {
+	if (receipt == MESSAGE_RECEIPT_RESPONSE) {
 		// Only for schedule message NEW
 		lua_pushinteger(L, m->to.id);
 		message_delete(m);
diff --git a/src/message.h b/src/message.h
index fb39e59..97b9517 100644
--- a/src/message.h
+++ b/src/message.h
@@ -17,7 +17,7 @@ typedef unsigned int session_t;
 #define MESSAGE_RECEIPT_DONE 1
 #define MESSAGE_RECEIPT_ERROR 2
 #define MESSAGE_RECEIPT_BLOCK 3
-#define MESSAGE_RECEIPT_RESPONCE 4
+#define MESSAGE_RECEIPT_RESPONSE 4
 
 // If to == 0, it's a schedule message. It should be post from root service (1).
 // type is MESSAGE_SCHEDULE_* from is the parameter (for DEL service_id).
diff --git a/src/service.c b/src/service.c
index b6c6ec1..1ea5b9d 100644
--- a/src/service.c
+++ b/src/service.c
@@ -113,7 +113,7 @@ free_service(struct service *S) {
 }
 
 void
-service_destory(struct service_pool *p) {
+service_destroy(struct service_pool *p) {
 	if (p == NULL)
 		return;
 	int i;
diff --git a/src/service.h b/src/service.h
index b93d9d6..8c9a9ab 100644
--- a/src/service.h
+++ b/src/service.h
@@ -26,7 +26,7 @@ typedef struct {
 } service_id;
 
 struct service_pool * service_create(struct ltask_config *config);
-void service_destory(struct service_pool *p);
+void service_destroy(struct service_pool *p);
 service_id service_new(struct service_pool *p, unsigned int id);
 // 0 succ
 int service_init(struct service_pool *p, service_id id, void *ud, size_t sz, void *pL);
diff --git a/src/worker.h b/src/worker.h
index b3ac66e..72b6a82 100644
--- a/src/worker.h
+++ b/src/worker.h
@@ -103,7 +103,7 @@ worker_quit(struct worker_thread *w) {
 }
 
 static inline void
-worker_destory(struct worker_thread *worker) {
+worker_destroy(struct worker_thread *worker) {
 	cond_release(&worker->trigger);
 }
 
@@ -131,7 +131,7 @@ worker_assign_job(struct worker_thread *worker, service_id id) {
 			if (q->head == q->tail)
 				q->head = q->tail = 0;
 		}
-		// only one producer (Woker) except itself (worker_steal_job), so don't need use CAS to set
+		// only one producer (Worker) except itself (worker_steal_job), so don't need use CAS to set
 		worker->service_ready = id.id;
 		return id;
 	} else {