AbiWord is a full-featured, efficient word processing application. It is suitable for a wide variety of word processing tasks, and is extensible with a variety of plugins.

This package includes many of the available import/export plugins allowing AbiWord to interact with ODT, WordPerfect, and other formats. It also includes tools plugins, offering live collaboration with AbiWord users on Linux and Windows (using TCP or Jabber/XMPP), web translation and dictionary support, and more.

AcidRip is an easy to use Gtk2 Perl application for ripping and encoding DVD's. It neatly wraps MPlayer and MEncoder. As well as creating a simple GUI for those preferring to avoid MEncoders command line interface, It also automates the process in a number of ways.

A free, stand-alone FPS game based on source code released by id Software. Begun by COR Entertainment in 2004, the game combines a 1950s-era sci-fi atmosphere with gameplay similar to the Quake, Doom, and Unreal Tournament series. Alien Arena focuses mainly on online multiplayer action, although it does contain single-player campaigns against bots.

Amarok is the most popular fully featured music player for Linux. It has an intuitive interface and makes playing the music you love easier than ever before.

AMOR stands for Amusing Misuse Of Resources. It provides several different characters who prance around your X screen doing tricks and giving you tips.

aMSN is a free open source MSN Messenger clone, with features such as:

• Offline Messaging
• Custom emoticons
• Multi-language support
• Webcam support
• Sign in to more than one account at once
• Full-speed File transfers
• Group support
• Chat logs
• Timestamping
• Event alarms
• Conferencing support
• Tabbed chat windows

Asunder is a graphical audio CD ripper and encoder. You can use it to save tracks from an audio CD as WAV, MP3, OGG, and FLAC. It has CDDB support and can create M3U playlists. It can rip and encode at the same time. It aims to make CD ripping as quick and easy as possible.

Audacity® is free, open source software for recording and editing sounds.

Audacity is a multi-track audio editor. It is designed for easy recording, playing and editing of digital audio. Audacity features digital effects and spectrum analysis tools. Editing is very fast and provides unlimited undo/redo.

Avant Window Navigator (AWN/Awn) is a dock-like navigation bar for the linux desktop that positions itself at the bottom of the screen. It can be used to keep track of open windows and behaves like a normal task manager list.