How should I write the meaning of each word?

If you intend using the glossary auto-quiz, it is important that you do not repeat the term in the first sentence of the meaning/explanation. 

For example, if the term was 'sprit rig' then

• write 'A boom that extends upward from the mast to the topmost corner of a quadrangle sail'.
• do NOT write 'A sprit is a boom that extends upward from the mast to the topmost corner of a quadrangle sail'.

What size should I make the image?

You need two sizes for each image

• The thumbnail image is 100 px wide
• The main image should be no wider than 400 px

How should the images be named?

• There must be no spaces in the name of the image file. For example, 'big fish.jpg' is wrong; 'big_fish.jpg' or bigFish.jpg is OK.
• The thumbnail image must have the string '_sm' appended to its name eg. 'bigFish_sm.jpg'