0-9/symbols:
3d acceleration

A:
About myself
About xfce
Access prompt
Accessibility
Adobe flash player
Aisleriot solitaire
Alien
Alien-arena 
Alien-arena-server
Alsamixergui
Amdappsdk-3.0
Amsynth
Appearance
Application finder
Aptana_studio_3
Archive manager
Ardour-4
Ati catalyst control center
Audacious
Audacity
Audio mixer
Avidemux (qt)
Avidemux jobs manager

B:
Background
Bastille
Betty
Blender
Blender-2.77a-linux-glibc211-x86_64
Bluefish
Bluetooth
Bluetooth manager
Bluetooth transfer
Boinc manager
Brackets
Brasero
Bulk rename

C:
Captive portal
Cadence
Cairo-dock
Cairo-dock (fallback mode)
Calculator
Calf plugin pack for jack
Carla
Carla control
Catia
Cd player
Cd/dvd creator
Character map
Cheese
Chess
Chrootkit
Clamav
Claudia
Claudia launcher
Clipit
Clipman
Clocks
Cmail
Color
Color picker
Color profile viewer
Compiz fusion icon
Compiz start
Compizconfig settings manager
Conky manager
Connect to server
Contacts
Crack attack
Create launcher on the panel
Curl
Customize look and feel

D:
Darktable
Darkstat
Date & time
Dconf editor
Default applications for lxsession
Desktop
Desktop icons
Desktop preferences
Desktop search
Desktop session settings
Desktop sharing
Desktopnova
Desktopnova-tray
Details
Dia
Dictionary
Disk image mounter
Disk image writer
Disk management
Disk usage analyzer
Disks
Displays
Document viewer
Documents
Drumkv1

E:
Echomixer
Entangle
Emerald theme manager
Empathy
Enqueue in smplayer
Envy24 control
Espdiff
Etherape
Etherape (as root)
Etracer
Evolution
Evolution calendar
Ex falso
Extreme tux racer

F:
Fail2ban
Fairymax
Feh
Ffado mixer
Fgcom
Fgelev
Fgfs
Fgjs
Fglrx-15.9
Fgpanel
Fgviewer
File manager
File manager pcmanfm
Files
Filezilla client
Firefox web browser
Five or more
Five-or-more
Flightgear
Fofix 
Font viewer
Fotoxx
Four-in-a-row
Frescobaldi
Frets on fire
Fretsonfire

G:
Galculator
Gdebi
Gedit
Giggle
Gimagereader
Git cola
Git dag
Giteye-1.10.0-linux.x86_64 
Gitg
Glassfish-4.1
Gnome mplayer
Gnome shell
Gnome shell (wayland compositor)
Gnome shell classic
Gnome shell extension preferences
Gnome system monitor
Gnome-chess
Gnome-klotski
Gnome-mahjongg
Gnome-mines
Gnome-nibbles
Gnome-robots 
Gnome-sudoku
Gnome-tetravex
Gnote
Gnu image manipulation program
Google
Google chrome
Gparted
Gpssmooth 
Guitarix
Guvcview

H:
Handbrake
Hardinfo
Hdajackretask
Hdspconf
Hdspmixer
Help
Higan
Hitori
Hoichess
Hoixiangqi
Htop
Hugin batch processor
Hugin calibrate lens
Hugin panorama creator
Hugin pto generator
Hydrogen

I:
Iagno
Icc profile installer
Icedove
Icedtea java web start
Icedtea web control panel
Iceweasel
Image viewer
Imagemagick (display q16)
Ingen
Inkscape
Ip

J:
Jack keyboard
Jamin

K:
Keyboard
Keyboard and mouse
Keyboard layout
Kingsoft
Klotski
Kxstudio
Kxstudio welcome

L:
Leafpad
Libreoffice
Libreoffice base
Libreoffice calc
Libreoffice draw
Libreoffice impress
Libreoffice math
Libreoffice writer
Libreoffice xslt based filters
Liferea
Lights off
Lightsoff 
Lightworks
Linthesia
Linux
Linux-headers-3.16.0-4-amd64
Linux-headers-3.16.0-4-common
Linux-kbuild-3.16
Lispeak-master
Lmms
Log out
Logical volume management
Logout
Logs
lshw
Lshw-gtk
Luks
Lxmusic simple music player

M:
Main menu
Mahjongg
Mail reader
Maldet
Maps
Maxqi
Mednafen
Mednafen 
Metacity
Meterbridge
Midgsmooth
Midisnoop
Midnight commander
Mime type editor
Mines
Minetest
Minetest-mapper 
Minetestserver
Mixxx
Monitor settings
Mouse & touchpad
Mouse and touchpad
Mousepad
Mtpaint graphic editor
Mudita24
Multibootusb
Multimedia systems selector
Mupen64plus
Muse
Music
Mutt
Mutter
Mutter (wayland compositor)
Mypaint

N:
Natron
Netbeans ide 8.0.2
Netbeans-8.0.2-linux.sh
Netfilter
Netstat
Network
Network connections
Network tools
Nibbles
Nmap
Non mixer
Non sequencer
Non session manager
Non timeline
Notes
Notifications
Notifyosd configuration

O:
Obs
Online accounts
Open folder with thunar
Openarena
Openbox configuration manager
Opencv_createsamples
Opencv_haartraining
Opencv_performance
Opencv_traincascade
Openjdk java 7 policy tool
Openscad
Openshot video editor
Openssh server
Openssl
Openvpn
Orage calendar
Orage globaltime
Orage preferences
Osmo

P:
Package install
Package log
Package sources
Package updater
Palaver-master
Panel
Parcellite
Password
Personal file sharing
Petri-foo
Ping
Phasex
Photos
Pidgin internet messenger
Polari
Popcorn time ce
Power
Power manager
Power statistics
Preferred applications
Print preview
Print settings
Printers
Privacy
Privoxy
Projectlibre
Python (v2.7)
Python (v3.4)

Q:
Qjackctl
Qmidiarp
Qsampler
Qsynth
Qtractor
Quadrapassel

R:
Rakarrack
Rar
Rawtherapee
Reactivate hp laserjet 1018/1020 after reloading paper
Recordmydesktop
Region & language
Remote desktop viewer
Remote viewer
Removable drives and media
Reportbug
Rhythmbox
Ring
Ristretto image viewer
Rkhunter
Rmedigicontrol
Robomongo
Robots
Root terminal
Rosegarden
Rstudio
Run program...
Rygel

S:
Samplv1
Screen
Screen reader
Screenlets
Screenlock
Screensaver
Screenshot
Scribus
Seahorse
Search
Search and indexing
Selinux
Sensor viewer
Seq24
Services
Session and startup
Setbfree
Settings
Settings editor
Settings manager
Shamax
Shared folders
Simple scan
Simplescreenrecorder
Sirius-1.0.1
Skype
Smplayer
Software install
Software sources
Sooperlooper
Sound
Sound recorder
Speedtest
Spyder
Spotify
Steadyflow
Steam
Steam.real
Stellarium
Sudoku
Supertuxkart
Swell foop
Swell-foop
Synaptic package manager
Synthv1
Sysctl
System log
System monitor

T:
Tali
Task manager
Tcpdump
Teamviewer 10
Telegram
Terminal
Terminal emulator
Terrasync
Tetravex
Texstudio
Thunar file manager
Time tracker
Time tracking overview
Tp-smapi-0.41
Traceroute
Transmission
Trigger
Trigger-rally
Tripwire
Tor
Tweak tool

U:
Ufraw
Ugsmooth
Umbrello
Universal access
Unrar
Users
Users and groups
Uxterm

V:
Vboxguest-4.1.18
Vboxguestadditions-4.1.18
Veracrypt
Videos
View file
Vim
Virtual machine manager
Virtualbox
Virtualbox-4.3.36
Vlc media player
Vmpk

W:
Wacom tablet
Web browser
Where am i?
Wicd network manager
Window manager
Window manager tweaks
Wine
Wireshark
Workspaces
Wps presentation
Wps spreadsheets
Wps writer

X:
Xarchiver
Xboard
Xchat irc
Xfburn
Xfce terminal
Xjadeo
Xsane image scanning program
Xterm

Y:
Yasim
Yasim-proptest
Yumi

Z:
Zynaddsubfx - alsa
Zynaddsubfx - jack


The most of the apps in the list have been found as follows:

Group 1:
Paste the next code onto the GNOME Terminal, and then hit enter:

for file in /usr/share/applications/*.desktop;
do
    while IFS== read -r key val
    do
        if [[ -z $key ]]; then
            continue
        else
            if [[ $key =~ ^\[Desktop\ Entry ]]; then
                interesting_field=1
            elif [[ $key =~ ^\[ ]]; then
                interesting_field=0
            fi
        fi
        [[ $interesting_field -eq 1 ]] && [[ $key == "Name" ]] && echo $val
    done < $file
done

As I did, you can find and add more apps to your own list as follows:

Starting from Group 2 some apps could lack of Icon, it depends on you or whether the app has been made to run only in the command line. Also I use folder names here to make two entries, one for the app version in installation paths and a second one to the excutable in the groups paths. I don't use this duplicates to app icons by creating new symlinks to second app versions under /usr/bin. For example there are blender and blender277.

Group 2:
List apps directories under /opt:
$ ls /opt

Group 3:
List apps directories under /usr/games:
$ ls /usr/games

Group 4: List apps under /usr/src:
$ ls /usr/src

Group 5: List apps under /usr/bin:
$ ls /usr/bin

Group 6: List apps under /usr/local:
$ ls /usr/local

Group 7: List apps under /usr/local/bin:
$ ls /usr/local/bin

Group 8: List apps under /usr/local/src:
$ ls /usr/local/src

Group 9: List apps under /home/esteban/.linuxbrew/:
$ ls /home/esteban/.linuxbrew/ (...)

Group 10: List apps no Wine icon under /home/esteban/.wine/:
$ ls /home/esteban/.wine/ (...)

