diff --git a/.vscode/cspell.dictionaries/shell.wordlist.txt b/.vscode/cspell.dictionaries/shell.wordlist.txt
index 16d7b25e9..95dea94a7 100644
--- a/.vscode/cspell.dictionaries/shell.wordlist.txt
+++ b/.vscode/cspell.dictionaries/shell.wordlist.txt
@@ -83,6 +83,8 @@ codespell
 commitlint
 dprint
 dtrace
+flamegraph
+flamegraphs
 gcov
 gmake
 grcov
@@ -90,6 +92,7 @@ grep
 markdownlint
 rerast
 rollup
+samply
 sed
 selinuxenabled
 sestatus
diff --git a/src/uu/rm/BENCHMARKING.md b/src/uu/rm/BENCHMARKING.md
index cff93ec93..507906d49 100644
--- a/src/uu/rm/BENCHMARKING.md
+++ b/src/uu/rm/BENCHMARKING.md
@@ -1,3 +1,4 @@
+<!-- spell-checker:ignore samply flamegraph flamegraphs -->
 # Benchmarking rm
 
 Run `cargo build --release` before benchmarking after you make a change!