I have taken dance for just around 15 years. I find its a bit easier in guard if you know a few dance terms at least. I have also learned that many people in guard do not have a basic understanding of vocabulary and will often wrongly name something. These are just some beginner terms, but they do help your basic understanding. I am, of course missing a lot of the apostrophes or what not, but basically, they are all spelt right. I have also tried to add a brief explanation to each of the words. If there are any problems you notice, please contact me.
Saute - To jump - This is any kind of jump from any position, it is not limited.
Tendu' - To stretch - Tendu' position is extended from your body, your leg completely straight, but your foot remains on the floor.
Degage - To Disengage - Degage is extended from your body with your leg completely straight BUT as opposed to tendu' your foot is lifted off the floor, but only by a comfortable couple of inches.
Port de Bras - Carriage of the Arms - Any type of movement with the arms, this is not limited.
combre - To arch
chasse - to chase
glissade - to glide
jete - Thrown - A leap, but your leg does not develop through, but instead comes off the ground straight.
Saut de Chat - Leap of the cat - A leap, but developed
Pas de Chat - Step of the cat
passe' - To pass
pique - To prick
releve' - Raised
rond de jambe - Around the leg