diff --git a/interim/source_strings.yaml b/interim/source_strings.yaml
index d310c5b3..3d3440fa 100644
--- a/interim/source_strings.yaml
+++ b/interim/source_strings.yaml
@@ -1734,6 +1734,7 @@ en:
       line_attachment:
         # line_attachment=*
         label: Line Attachment
+        terms: '[translate with synonyms or related terms for ''Line Attachment'', separated by commas]'
       line_management:
         # line_management=*
         label: Line Management
@@ -8637,6 +8638,11 @@ en:
         # power=cable + location=underground | Translate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).
         name: Underground Power Cable
         terms: <translate with synonyms or related terms for 'Underground Power Cable', separated by commas>
+      power/catenary_mast:
+        # power=catenary_mast | Translate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).
+        name: Catenary Pole
+        # 'terms: catenary pylon,catenary mast,overhead line,overhead wire'
+        terms: <translate with synonyms or related terms for 'Catenary Pole', separated by commas>
       power/generator:
         # power=generator | Translate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).
         name: Power Generator