diff --git a/share/completions/string.fish b/share/completions/string.fish
index 2966cac9f..f207817d8 100644
--- a/share/completions/string.fish
+++ b/share/completions/string.fish
@@ -1,7 +1,7 @@
 # Completion for builtin string
 # This follows a strict command-then-options approach, so we can just test the number of tokens
 complete -f -c string
-complete -f -c string -n "test (count (commandline -opc)) -ge 2; and not contains -- (commandline -opc)[2] escape" -s q -l quiet
+complete -f -c string -n "test (count (commandline -opc)) -ge 2; and not contains -- (commandline -opc)[2] escape" -s q -l quiet -d "Do not print output"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "length"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "sub"
 complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] sub" -s s -l start -a "(seq 1 10)"
@@ -18,8 +18,9 @@ complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "escape"
 complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] escape" -s n -l no-quoted -d "Escape with \\ instead of quoting"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "match"
 complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] match" -s n -l index -d "Report index and length of the matches"
+complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] match" -s v -l invert -d "Report only non-matching input"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "replace"
 # All replace options are also valid for match
 complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] match replace" -s a -l all -d "Report all matches per line/string"
-complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] match replace" -s i -l ignore-case
+complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] match replace" -s i -l ignore-case -d "Case insensitive"
 complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] match replace" -s r -l regex -d "Use regex instead of globs"