diff --git a/unison-cli/src/Unison/CommandLine/InputPatterns.hs b/unison-cli/src/Unison/CommandLine/InputPatterns.hs
index 4537bfedf3..c278217b32 100644
--- a/unison-cli/src/Unison/CommandLine/InputPatterns.hs
+++ b/unison-cli/src/Unison/CommandLine/InputPatterns.hs
@@ -682,8 +682,8 @@ renameType =
               "`rename.type` takes two arguments, like `rename.type oldname newname`."
     )
 
-deleteGen :: Maybe String -> String -> ([Path.HQSplit'] -> DeleteTarget) -> InputPattern
-deleteGen suffix target mkTarget =
+deleteGen :: Maybe String -> ArgumentType -> String -> ([Path.HQSplit'] -> DeleteTarget) -> InputPattern
+deleteGen suffix queryCompletionArg target mkTarget =
   let cmd = maybe "delete" ("delete." <>) suffix
       info =
         P.wrapColumn2
@@ -717,7 +717,7 @@ deleteGen suffix target mkTarget =
         cmd
         []
         I.Visible
-        [(OnePlus, exactDefinitionTermQueryArg)]
+        [(OnePlus, queryCompletionArg)]
         info
         ( \case
             [] -> Left . P.warnCallout $ P.wrap warn
@@ -727,22 +727,22 @@ deleteGen suffix target mkTarget =
         )
 
 delete :: InputPattern
-delete = deleteGen Nothing "term or type" (DeleteTarget'TermOrType DeleteOutput'NoDiff)
+delete = deleteGen Nothing exactDefinitionTypeOrTermQueryArg "term or type" (DeleteTarget'TermOrType DeleteOutput'NoDiff)
 
 deleteVerbose :: InputPattern
-deleteVerbose = deleteGen (Just "verbose") "term or type" (DeleteTarget'TermOrType DeleteOutput'Diff)
+deleteVerbose = deleteGen (Just "verbose") exactDefinitionTypeOrTermQueryArg "term or type" (DeleteTarget'TermOrType DeleteOutput'Diff)
 
 deleteTerm :: InputPattern
-deleteTerm = deleteGen (Just "term") "term" (DeleteTarget'Term DeleteOutput'NoDiff)
+deleteTerm = deleteGen (Just "term") exactDefinitionTermQueryArg "term" (DeleteTarget'Term DeleteOutput'NoDiff)
 
 deleteTermVerbose :: InputPattern
-deleteTermVerbose = deleteGen (Just "term.verbose") "term" (DeleteTarget'Term DeleteOutput'Diff)
+deleteTermVerbose = deleteGen (Just "term.verbose") exactDefinitionTermQueryArg "term" (DeleteTarget'Term DeleteOutput'Diff)
 
 deleteType :: InputPattern
-deleteType = deleteGen (Just "type") "type" (DeleteTarget'Type DeleteOutput'NoDiff)
+deleteType = deleteGen (Just "type") exactDefinitionTypeQueryArg "type" (DeleteTarget'Type DeleteOutput'NoDiff)
 
 deleteTypeVerbose :: InputPattern
-deleteTypeVerbose = deleteGen (Just "type.verbose") "type" (DeleteTarget'Type DeleteOutput'Diff)
+deleteTypeVerbose = deleteGen (Just "type.verbose") exactDefinitionTypeQueryArg "type" (DeleteTarget'Type DeleteOutput'Diff)
 
 deleteTermReplacementCommand :: String
 deleteTermReplacementCommand = "delete.term-replacement"
@@ -2954,6 +2954,14 @@ exactDefinitionTypeQueryArg =
       globTargets = Set.fromList [Globbing.Type]
     }
 
+exactDefinitionTypeOrTermQueryArg :: ArgumentType
+exactDefinitionTypeOrTermQueryArg =
+  ArgumentType
+    { typeName = "type or term definition query",
+      suggestions = \q cb _http p -> Codebase.runTransaction cb (prefixCompleteTermOrType q p),
+      globTargets = Set.fromList [Globbing.Term]
+    }
+
 exactDefinitionTermQueryArg :: ArgumentType
 exactDefinitionTermQueryArg =
   ArgumentType
diff --git a/unison-src/transcripts/tab-completion.md b/unison-src/transcripts/tab-completion.md
index 08b3c8f0bd..8075887b3c 100644
--- a/unison-src/transcripts/tab-completion.md
+++ b/unison-src/transcripts/tab-completion.md
@@ -1,9 +1,7 @@
 # Tab Completion
 
-
 Test that tab completion works as expected.
 
-
 ## Tab Complete Command Names
 
 ```ucm
@@ -53,3 +51,17 @@ unique type subnamespace.AType = A | B
 .> debug.tab-complete io.test subnamespace
 .> debug.tab-complete io.test subnamespace.
 ```
+
+Tab Complete Delete Subcommands
+
+```unison
+unique type Foo = A | B
+add : a -> a
+add b = b
+```
+
+```ucm
+.> update
+.> debug.tab-complete delete.type Foo
+.> debug.tab-complete delete.term add
+```
diff --git a/unison-src/transcripts/tab-completion.output.md b/unison-src/transcripts/tab-completion.output.md
index f7dc865e63..cf09b229fb 100644
--- a/unison-src/transcripts/tab-completion.output.md
+++ b/unison-src/transcripts/tab-completion.output.md
@@ -1,9 +1,7 @@
 # Tab Completion
 
-
 Test that tab completion works as expected.
 
-
 ## Tab Complete Command Names
 
 ```ucm
@@ -135,3 +133,41 @@ unique type subnamespace.AType = A | B
   * subnamespace.someOtherName
 
 ```
+Tab Complete Delete Subcommands
+
+```unison
+unique type Foo = A | B
+add : a -> a
+add b = b
+```
+
+```ucm
+
+  I found and typechecked these definitions in scratch.u. If you
+  do an `add` or `update`, here's how your codebase would
+  change:
+  
+    ⍟ These new definitions are ok to `add`:
+    
+      unique type Foo
+      add : a -> a
+
+```
+```ucm
+.> update
+
+  ⍟ I've added these definitions:
+  
+    unique type Foo
+    add : a -> a
+
+.> debug.tab-complete delete.type Foo
+
+  * Foo
+    Foo.
+
+.> debug.tab-complete delete.term add
+
+  * add
+
+```