diff --git a/.aliases_functions.sh b/.aliases_functions.sh
index 03d0161..7cfe10b 100644
--- a/.aliases_functions.sh
+++ b/.aliases_functions.sh
@@ -99,6 +99,24 @@ define(){
     declare -f $1 | bat --style numbers,grid --language sh || return 0 # declare only on functions, don't error out if $1 is an alias
 }
 
+# Shows definition of all functions that match the passed string (case insensitive). TODO: support aliases as well
+define_all() {
+    local function_names=""
+
+    if [ -n "$BASH_VERSION" ]; then
+        function_names=$(declare -F | awk '{print $3}')
+    elif  [ -n "$ZSH_VERSION" ]; then
+        function_names=$(print -l ${(k)functions})
+    fi
+
+    matches=$(echo $function_names | grep -i $1)
+
+    # ${=var} splits the string on whitespace into an array. Only required for zhs, in bash this is a noop and works as expected.
+    for match in ${=matches}; do
+        define $match
+    done
+}
+
 # default: returns a default value if STDIN is empty, otherwise return STDIN
 default() {
     grep . || echo $1
@@ -465,4 +483,4 @@ EOF
 
     export TABLEAU_SITE_ID=$(tableau_get "/sites" | jq -r ".sites.site[] | select(.contentUrl == \"$TABLEAU_CONTENTURL\").id")
     cenv TABLEAU_SITE_ID
-}
\ No newline at end of file
+}