Figure skating jumps are identified by the way the skater takes off the ice. Here are simple ways to tell them apart, using layman-friendly terms.
There are 6 different types of jumps (in order of base value): Toe loop (T), Salchow (S), Loop (Lo), Flip (F), Lutz (Lz), Axel (A).
Since Yuzuru rotates anti-clockwise in the air, these examples are for anti-clockwise jumps. For clock-wise jumpers, the left and right would reversed.
EDIT: The toe, lutz and flip can look confusingly similar. Just remember, for the toe, the skater rotates away from the foot on the ice and for the flip and lutz, the skater rotates towards the foot on the ice.