Tartan is a fabric pattern made by weaving different colours together in stripes in both directions. The stripes can be different widths, and there can be lots of different colours, unlike gingham which is made from two colours with equal width stripes.
In Scotland, different families had their own unique tartan pattern.
A waffle is a thin cake made from batter in a special device called a waffle iron. Waffle irons usually have a distinctive pattern on them.
Waffles are sweet, and are usually eaten for breakfast with melted butter, syrup or jam.
Waffle is also the name given to a pattern that looks like a waffle, which is sometimes found on knitted clothing and blankets.
A zigzag is a line that keeps changing direction, backwards and forwards, backwards and forwards, in a regular way. A lot of socks have zigzag patterns on them.