diff --git a/modules/tools/lookup/autoload/lookup.el b/modules/tools/lookup/autoload/lookup.el
index 7ed72136d..270b39227 100644
--- a/modules/tools/lookup/autoload/lookup.el
+++ b/modules/tools/lookup/autoload/lookup.el
@@ -353,4 +353,11 @@ Otherwise, falls back on `find-file-at-point'."
   (unless +lookup-dictionary-enable-online
     ;; TODO Implement offline synonyms backend
     (user-error "No offline dictionary implemented yet"))
-  (powerthesaurus-lookup-word-dwim))
+  ;; Necessary because powerthesaurus lacks a way to pass text directly
+  (with-temp-buffer
+    (insert identifier)
+    ;; HACK I'd rather use `+lookup-symbol-or-region' for consistency, but
+    ;;      powerthesaurus lacks a simple way to pass a string directly to any
+    ;;      of its lookup functions, so...
+    (cl-letf (((symbol-function 'use-region-p) (lambda () t)))
+      (powerthesaurus-lookup-word (point-min) (point-max)))))
diff --git a/modules/tools/lookup/config.el b/modules/tools/lookup/config.el
index 017619f84..f441031ea 100644
--- a/modules/tools/lookup/config.el
+++ b/modules/tools/lookup/config.el
@@ -193,5 +193,5 @@ See https://github.com/magit/ghub/issues/81"
 
 (when (featurep! +dictionary)
   (define-key! text-mode-map
-    [remap +lookup/definition] #'+lookup/word-definition
-    [remap +lookup/references] #'+lookup/word-synonyms))
+    [remap +lookup/definition] #'+lookup/dictionary-definition
+    [remap +lookup/references] #'+lookup/synonyms))