Currently Being ModeratedNov 15, 2012 7:26 PM (in response to brettinnz)
Sure is. Pages > Preferences > Auto-Correction. Enter your shortcut in the Replace column and your unusual word in the With column. Now when you type the shortcut followed by a space, you’ll get your word. Of course, this only works in Pages. If you want it to be universal, you’ll need another app such as SimpleKeys or TypeIt4Me.