Buttons expecting users to perform an action should be verbs.

app/javascript/mastodon/locales/en.json

@@ -351,6 +351,7 @@
   "status.replyAll": "Reply to thread",
   "status.report": "Report @{name}",
   "status.sensitive_warning": "Sensitive content",
+  "status.sensitive_toggle": "Reveal",
   "status.share": "Share",
   "status.show_less": "Hide",
   "status.show_less_all": "Hide all",

config/locales/en.yml

@@ -941,7 +941,7 @@ en:
   stream_entries:
     pinned: Pinned roar
     reblogged: boosted
-    sensitive_content: Sensitive content
+    sensitive_content: Reveal
   terms:
     body_html: |
       <h2>Privacy Policy</h2>