diff --git a/README.md b/README.md
index a9571fb..38856fe 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ The semi-honest setting can provide some degree of confidentiality, especially a
 
 Overcoming the community analysis concern requires a Sybil resistant, permissionless protocol where peers with no meaningful economic relationship can find each other. This involves an additional *coalition formation* protocol that sets up transaction construction using a market based mechanism.
 
-While it is beneficial for privacy, interacting with strangers in a permissionless protocol invites distruption or attempts are surveillance. For honest peers to be able reliably transact, especially with the unanimity requirement, demands a byzantine fault tolerance from the transaction construction protocol.
+While it is beneficial for privacy, interacting with strangers in a permissionless protocol invites disruption or attempts at surveillance. For honest peers to be able to reliably transact, especially with the unanimity requirement, demands a byzantine fault tolerance from the transaction construction protocol.
 
 In the course of a BFT interaction with untrusted peers, a participant may still use the other variants of the protocol to coordinate activity with the subset of peers they do know or trust, for instance by performing net-settlement within a larger BFT CoinJoin.
 
diff --git a/cspell.json b/cspell.json
new file mode 100644
index 0000000..c90a361
--- /dev/null
+++ b/cspell.json
@@ -0,0 +1,36 @@
+{
+  "version": "0.2",
+  "language": "en-US,en-GB",
+  "useGitignore": true,
+  "files": [
+    "**/*.{md,py,rs,nix,sh,toml,css}",
+    ".github/**/*.{yml,yaml,sh}",
+    "cspell.json"
+  ],
+  "ignorePaths": [
+    ".git/**",
+    ".jj/**",
+    "/src/**",
+    "/book/**",
+    "/result/**"
+  ],
+  "dictionaries": [
+    "bash",
+    "css",
+    "fonts",
+    "python",
+    "networking-terms",
+    "bitcoin-privacy",
+    "repo-tooling"
+  ],
+  "dictionaryDefinitions": [
+    {
+      "name": "bitcoin-privacy",
+      "path": "./cspell/bitcoin-privacy.txt"
+    },
+    {
+      "name": "repo-tooling",
+      "path": "./cspell/tooling.txt"
+    }
+  ]
+}
diff --git a/cspell/bitcoin-privacy.txt b/cspell/bitcoin-privacy.txt
new file mode 100644
index 0000000..16c9b72
--- /dev/null
+++ b/cspell/bitcoin-privacy.txt
@@ -0,0 +1,30 @@
+# Bitcoin and privacy vocabulary
+blockspace
+CoinJoin
+deanonymization
+deanonymize
+CLTV
+CPFP
+DLEQ
+ECDH
+feerate
+finalizer
+HTLCs
+keytype
+locktime
+Merkle
+MuSig
+Payjoin
+permissionless
+preimages
+PSBT
+PSBTs
+pubkeys
+RIPEMD
+scriptSig
+scriptWitness
+sighash
+taptree
+unlinkability
+UTXO
+xpub
diff --git a/cspell/tooling.txt b/cspell/tooling.txt
new file mode 100644
index 0000000..4275994
--- /dev/null
+++ b/cspell/tooling.txt
@@ -0,0 +1,21 @@
+# Repository tools, identifiers, and upstream authors
+cacheprovider
+DejaVu
+devshell
+DNSSEC
+dontInstall
+dylanowen
+fontconfig
+Graphviz
+KaTeX
+lzanini
+mdBook
+mmdc
+NixOS
+nixpkgs
+pkgs
+pytest
+PyYAML
+stdenv
+toplevel
+unfetched
diff --git a/nix/spellcheck.nix b/nix/spellcheck.nix
index 3739ccf..4ace583 100644
--- a/nix/spellcheck.nix
+++ b/nix/spellcheck.nix
@@ -3,6 +3,12 @@
   perSystem =
     { pkgs, ... }:
     {
+      checks.cspell = pkgs.runCommand "cspell" { nativeBuildInputs = [ pkgs.cspell ]; } ''
+        cd ${../.}
+        cspell --config cspell.json --no-progress --show-suggestions
+        touch $out
+      '';
+
       checks.typos = pkgs.runCommand "typos" { nativeBuildInputs = [ pkgs.typos ]; } ''
         cd ${../.}
         typos