diff --git a/docs/js_sdk/erc20Trade/orderERC20.md b/docs/js_sdk/erc20Trade/orderERC20.md
index bcc9583f..143b9035 100644
--- a/docs/js_sdk/erc20Trade/orderERC20.md
+++ b/docs/js_sdk/erc20Trade/orderERC20.md
@@ -728,7 +728,7 @@ const [{depth}, {ammPoolSnapshot}] = await Promise.all([
 ]);
 ```
 
-### Step  5. check MinAmt see log and calc mini receive and ouput value & maxfeeBips & priceImpact
+### Step  5. check MinAmt see log and calc mini receive and output value & maxfeeBips & priceImpact
 
 ```ts
 const { calcTradeParams, maxFeeBips, minimumReceived } = calculateSwap(
diff --git a/src/api/request.ts b/src/api/request.ts
index 010a3ade..65a3f594 100644
--- a/src/api/request.ts
+++ b/src/api/request.ts
@@ -71,7 +71,7 @@ export class Request {
           return true
         }
         return false
-        // return true // always true, handle exception in each bussiness logic
+        // return true // always true, handle exception in each business logic
       },
 
       insecure: true,
diff --git a/src/api/sign/poseidon/permutation.ts b/src/api/sign/poseidon/permutation.ts
index a5ff505f..35d738ee 100644
--- a/src/api/sign/poseidon/permutation.ts
+++ b/src/api/sign/poseidon/permutation.ts
@@ -201,7 +201,7 @@ export class permunation {
 
   // poseidon
   /*
-    Main instansiation of the Poseidon permutation
+    Main instantiation of the Poseidon permutation
 
     The state is `t` elements wide, there are `F` full-rounds
     followed by `P` partial rounds, then `F` full rounds again.
diff --git a/src/defs/account_defs.ts b/src/defs/account_defs.ts
index 94f3526d..3c12bfc9 100644
--- a/src/defs/account_defs.ts
+++ b/src/defs/account_defs.ts
@@ -4,7 +4,7 @@ import { PublicKey } from './loopring_enums'
  * AccountInfo
  * @property accountId number Account ID
  * @property owner string  Ethereum address
- * @property frozen boolean The frozen state of the account, true stands for frozen, if the account is frozen, the user cant submit order.
+ * @property frozen boolean The frozen state of the account, true stands for frozen, if the account is frozen, the user can't submit order.
  * @property publicKey PublicKey The user's public key
  * @property tags? string Comma separated list of tags such as VIP levels, etc
  * @property nonce number field.DexAccountV3.nonce
diff --git a/src/defs/loopring_defs.ts b/src/defs/loopring_defs.ts
index c273b909..16e1a308 100644
--- a/src/defs/loopring_defs.ts
+++ b/src/defs/loopring_defs.ts
@@ -1484,7 +1484,7 @@ export enum STOP_SIDE {
 
 export interface SubmitOrderRequestV3 {
   /**
-   * The adderss of the exchange which has to process this order
+   * The address of the exchange which has to process this order
    * @type {string}
    * @memberof SubmitOrderRequestV3
    */
diff --git a/src/tests/demo/erc20Trade/orderERC20.md b/src/tests/demo/erc20Trade/orderERC20.md
index 0566bea9..f5e985d0 100644
--- a/src/tests/demo/erc20Trade/orderERC20.md
+++ b/src/tests/demo/erc20Trade/orderERC20.md
@@ -580,7 +580,7 @@ const [{depth}, {ammPoolSnapshot}] = await Promise.all([
 ]);
 ```
 
-### Step 5. Check MinAmt see log and calc mini receive and ouput value & maxfeeBips & priceImpact & swap output
+### Step 5. Check MinAmt see log and calc mini receive and output value & maxfeeBips & priceImpact & swap output
 
 ```ts
 const { calcTradeParams, maxFeeBips, minimumReceived } = calculateSwap(
@@ -719,7 +719,7 @@ const [{depth}, {ammPoolSnapshot}] = await Promise.all([
 ]);
 ```
 
-### Step  5. check MinAmt see log and calc mini receive and ouput value & maxfeeBips & priceImpact
+### Step  5. check MinAmt see log and calc mini receive and output value & maxfeeBips & priceImpact
 
 ```ts
 const { calcTradeParams, maxFeeBips, minimumReceived } = calculateSwap(
diff --git a/src/tests/demo/erc20Trade/orderERC20.test.ts b/src/tests/demo/erc20Trade/orderERC20.test.ts
index af8df2ca..c0f496f2 100644
--- a/src/tests/demo/erc20Trade/orderERC20.test.ts
+++ b/src/tests/demo/erc20Trade/orderERC20.test.ts
@@ -618,7 +618,7 @@ describe("orderERC20", function () {
           }),
         ]);
 
-        // Step 5. check MinAmt see log and calc mini receive and ouput value & maxfeeBips & priceImpact
+        // Step 5. check MinAmt see log and calc mini receive and output value & maxfeeBips & priceImpact
         // @ts-ignore
         const { calcTradeParams, maxFeeBips, minimumReceived } = calculateSwap(
           sell,