diff --git a/share/completions/string.fish b/share/completions/string.fish
index 37d72f5b6..890abf870 100644
--- a/share/completions/string.fish
+++ b/share/completions/string.fish
@@ -12,29 +12,34 @@ complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "split"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "split0"
 complete -x -c string -n 'test (count (commandline -opc)) -ge 2; and string match -qr split0\?\$ -- (commandline -opc)[2]' -s m -l max -a "(seq 1 10)" -d "Specify maximum number of splits"
 complete -f -c string -n 'test (count (commandline -opc)) -ge 2; and string match -qr split0\?\$ -- (commandline -opc)[2]' -s r -l right -d "Split right-to-left"
+complete -f -c string -n 'test (count (commandline -opc)) -ge 2; and string match -qr split0\?\$ -- (commandline -opc)[2]' -s n -l no-empty -d "Empty results excluded"
+
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "join"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "join0"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "trim"
-complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] trim" -s l -l left -d "Trim only leading characters"
-complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] trim" -s r -l right -d "Trim only trailing characters"
+complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] trim" -s l -l left -d "Trim only leading chars"
+complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] trim" -s r -l right -d "Trim only trailing chars"
 complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] trim" -s c -l chars -d "Specify the chars to trim (default: whitespace)"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "escape"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "unescape"
-complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] escape; or contains -- (commandline -opc)[2] unescape" -s n -l no-quoted -d "Escaped with \\ instead of quoted"
-complete -x -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] escape; or contains -- (commandline -opc)[2] unescape" -l style -d "Escaping style" -a "
+complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] escape; or contains -- (commandline -opc)[2] unescape" -s n -l no-quoted -d "Escape with \\ instead of quotes"
+complete -x -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] escape; or contains -- (commandline -opc)[2] unescape" -l style -d "Specify escaping style" -a "
 (printf '%s\t%s\n' script 'For use in scripts' \
  var 'For use as a variable name' \
  regex 'For string match -r, string replace -r' \
  url 'For use as a URL')"
 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)) -ge 2; and contains -- (commandline -opc)[2] match" -s n -l index -d "Report index, length of match"
+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-matches"
+complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] match" -s e -l entire -d "Show entire matching lines"
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "replace"
+complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] replace" -s f -l filter -d "Report only actual replacements"
 # 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 a -l all -d "Report every match"
 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"
+
 complete -f -c string -n "test (count (commandline -opc)) -lt 2" -a "repeat"
 complete -x -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] repeat" -s n -l count -a "(seq 1 10)" -d "Repetition count"
-complete -x -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] repeat" -s m -l max -a "(seq 1 10)" -d "Maximum number of printed char"
+complete -x -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] repeat" -s m -l max -a "(seq 1 10)" -d "Maximum number of printed chars"
 complete -f -c string -n "test (count (commandline -opc)) -ge 2; and contains -- (commandline -opc)[2] repeat" -s N -l no-newline -d "Remove newline"
diff --git a/src/builtin_string.cpp b/src/builtin_string.cpp
index 8e7777111..ad945fdef 100644
--- a/src/builtin_string.cpp
+++ b/src/builtin_string.cpp
@@ -413,6 +413,7 @@ static wcstring construct_short_opts(options_t *opts) {  //!OCLINT(high npath co
 
 // Note that several long flags share the same short flag. That is okay. The caller is expected
 // to indicate that a max of one of the long flags sharing a short flag is valid.
+// Remember: adjust share/functions/string.fish when `string` options change
 static const struct woption long_options[] = {
     {L"all", no_argument, NULL, 'a'},         {L"chars", required_argument, NULL, 'c'},
     {L"count", required_argument, NULL, 'n'}, {L"entire", no_argument, NULL, 'e'},