diff --git a/contrib/linearize/README.md b/contrib/linearize/README.md
--- a/contrib/linearize/README.md
+++ b/contrib/linearize/README.md
@@ -46,7 +46,7 @@
 (Default: `1000*1000*1000 bytes`)
 * `netmagic`: Network magic number.
 * `out_of_order_cache_sz`: If out-of-order blocks are being read, the block can
-be written to a cache so that the blockchain doesn't have to be seeked again.
+be written to a cache so that the blockchain doesn't have to be sought again.
 This option specifies the cache size. (Default: `100*1000*1000 bytes`)
 * `rev_hash_bytes`: If true, the block hash list written by linearize-hashes.py
 will be byte-reversed when read by linearize-data.py. See the linearize-hashes
diff --git a/src/chain.h b/src/chain.h
--- a/src/chain.h
+++ b/src/chain.h
@@ -97,7 +97,7 @@
     //! (memory only) block header metadata
     uint64_t nTimeReceived;
 
-    //! (memory only) Maximum nTime in the chain upto and including this block.
+    //! (memory only) Maximum nTime in the chain up to and including this block.
     unsigned int nTimeMax;
 
     void SetNull() {
diff --git a/src/qt/test/rpcnestedtests.cpp b/src/qt/test/rpcnestedtests.cpp
--- a/src/qt/test/rpcnestedtests.cpp
+++ b/src/qt/test/rpcnestedtests.cpp
@@ -89,7 +89,7 @@
     (RPCConsole::RPCExecuteCommandLine(result2,
                                        "createrawtransaction([],{},0)"));
     QVERIFY(result == result2);
-    // Whitespace between parametres is allowed.
+    // Whitespace between parameters is allowed.
     (RPCConsole::RPCExecuteCommandLine(
         result2, "createrawtransaction( [],  {} , 0   )"));
     QVERIFY(result == result2);
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2788,7 +2788,7 @@
     if (nChangePosInOut != -1) {
         tx.vout.insert(tx.vout.begin() + nChangePosInOut,
                        tx_new->vout[nChangePosInOut]);
-        // we dont have the normal Create/Commit cycle, and dont want to risk
+        // we don't have the normal Create/Commit cycle, and don't want to risk
         // reusing change, so just remove the key from the keypool here.
         reservekey.KeepKey();
     }